Pro Basketball Playoffs “Beat the Expert” Prediction Markets Sweepstakes

OFFICIAL RULES

No purchase necessary. A purchase, transaction or payment of any kind will not increase your chances of winning. A purchase, transaction or payment of any kind is not necessary to enter the sweepstakes.

Participating in the Pro Basketball Playoffs “Beat the Expert” Prediction Markets Sweepstakes (the “Sweepstakes” or “Promotion”) constitutes your express consent to and acceptance of these Official Rules (“Rules”). By participating in the Sweepstakes, you represent and warrant you meet the eligibility requirements stated in these Rules and acknowledge that failure to meet all eligibility requirements will result in your disqualification.

A copy of these Rules will be available for the duration of the Sweepstakes at: https://www.coinbase.com/sweepstakes/probball26_rules 

Listed futures and swaps are offered by Coinbase Financial Markets (“Sponsor”), a NFA member firm. Trading prediction contracts involves substantial risk and may result in the loss of your entire investment. Contracts pay out only if the specified event occurs. Trade only if you understand the product and believe it is appropriate for your financial situation and objectives. Not investment advice or recommendation to purchase a particular asset or security or to employ a particular investment strategy.

Please be aware that these Rules contain an Arbitration Agreement governing how to resolve disputes between you and Sponsor and its related entities (collectively, “Coinbase”). Among other things, the Arbitration Agreement includes an agreement to arbitrate which requires, with limited exceptions, that all disputes between you and Coinbase shall be resolved by binding and final arbitration. These Rules also include a class action and jury trial waiver. These provisions can be found in Section 12 and Appendix 1 below. Please read these provisions carefully.

Participation is limited solely to legal residents of the forty nine (49) United States, and the District of Columbia (Nevada residents are expressly prohibited from participating). Void in Nevada and where prohibited by law. This Promotion shall be construed according to and governed exclusively by U.S. law.

The Sweepstakes is not sponsored by, endorsed by, or affiliated with the National Basketball Association (NBA), any other professional basketball league, teams, events, or players.

1. Promotion Period

The Promotion begins when the first Market in any eligible Pro-Basketball Playoffs Event (as defined below) is available to trade, which is anticipated to be on or about May 11, 2026, and concludes when the final Market in any eligible Pro-Basketball Playoffs Event has a Market Closure (as defined below), which is expected to be on or about June 17, 2026 (the “Promotion Period”). The Promotion Period may be subdivided by Sponsor into one or more “Rounds” corresponding to portions of the playoffs schedule, currently anticipated as follows (each, a “Round”):

• Round 1 (Coinbase One Member Month Special Round): on or about May 11–June 2, 2026 (Pro-Basketball Second Round and Conference Finals).

• Round 2: on or about June 3–June 17, 2026 (Pro-Basketball Finals).

Sponsor’s computer systems or those of its designee are the official time‑keeping devices for the Promotion.

2. Eligibility

The Promotion is open only to legal residents of the forty‑nine (49) United States and the District of Columbia who, at the time of entry, are at least eighteen (18) years of age and the legal age of majority in their jurisdiction of residence (an eligible “Participant”). Nevada residents are explicitly ineligible to participate in the Promotion and are prohibited from making prediction market trades.

The following are not eligible to participate in or win the Sweepstakes: Employees, directors, and officers of Sponsor, Ventura Associates International LLC (the “Administrator”), KalshiEX, LLC (“Kalshi”), and each of their respective parent companies, affiliates, subsidiaries, promotion or advertising agencies, and each of their respective directors, officers, employees, and assigns, and the immediate family members and/or those living in the same household of each (whether related or not) (collectively, the “Released Parties”). For purposes of this Promotion, “immediate family member” is defined as spouse, partner, parent, legal guardian, in‑law, grandparent, child, or grandchild and their respective spouses (as applicable).

There is no purchase, transaction, or payment necessary to enter. You do not need to have an existing Coinbase account prior to the start of the Promotion. However, (i) participation via Entry Method 1 requires that you create and use a Coinbase account that is eligible for prediction markets in order to place Eligible Trades, and (ii) regardless of method of entry, all Potential Winners will be required to have an active, fully verified Coinbase account in order to receive any Prize. Your chances of winning are the same regardless of method of entry.

3. Definitions

For purposes of these Rules, the following definitions apply:

• Pro Basketball Playoffs Event: A specific proposition related to one or more professional basketball playoff games (e.g., “Which team will win Game 1 of the Western Conference First Round series?” or “How many total points will be scored in Game 3 of the Pro Basketball Finals?”) designated by Sponsor as part of this Promotion.

• Market: A tradable outcome associated with a Pro Basketball Playoffs Event, such that each outcome (e.g., each team, player, or statistical threshold, and each side such as “yes” or “no”) constitutes a separate Market.

• Eligible Trade: For Method 1 (Trading Prediction Contracts), an “Eligible Trade” is defined as: (i) one (1) open, active prediction contract in one (1) Market of a Pro Basketball Playoffs Event made through the “Predict” tab or equivalent interface in the Coinbase app or website; and (ii) the prediction contract was purchased for a minimum of USD $5.00 including fees (the “Minimum Trade Amount”), as determined by Sponsor in its sole discretion. 

• Prediction: For Method 2 (Mail‑In), a “Prediction” is defined as one (1) active selection in one (1) Market of an NBA Playoffs Event on the official digital form for this Promotion for a specific Round (a Round Mail‑In Form), submitted in accordance with these Rules. A separate Round Mail‑In Form must be completed and submitted for each Round in which a Participant wishes to enter via Method 2.

• Market Closure: A “Market Closure” occurs when either: (i) a Market closes within the corresponding Pro Basketball Playoffs Event such that the outcome is determined and no further predictions can be made; or (ii) one side of a single Market (e.g., “yes” or “no”) reaches a probability or price threshold designated by Sponsor (for example, when odds reach or exceed a threshold such as 98 cents), indicating that the outcome is effectively determined and the Market is closed to new trades. In each case, a Market Closure is applicable to Markets where Participants have an Eligible Trade or Prediction.

• Correct Prediction: An Eligible Trade or Prediction that correctly forecasts the outcome of the applicable Market at Market Closure.

• Round Score: For each Round, a Participant’s Round Score is the total number of Correct Predictions the Participant has across all Eligible Trades (for Method 1) or Predictions (for Method 2) in Markets attributed to that Round, as determined by Sponsor.

• Expert / Expert Portfolio: One or more featured individuals selected by Sponsor whose predictions for one or more Pro Basketball Playoffs Events are publicly highlighted in connection with the Promotion (each, an “Expert”). For each Round, the Expert will have a designated set of predictions (an “Expert Portfolio”) whose outcomes determine the Expert’s Round performance.

• Expert Score: For each Round, the Expert Score is the number of Correct Predictions recorded for the Expert Portfolio for that Round, as determined by Sponsor.

• Beat the Expert: A Participant “Beats the Expert” for a given Round if, for that Round, the Participant’s Round Score is greater than the Expert Score (for example, by having more Correct Predictions than the Expert). A Round Score that is equal to the Expert Score does not qualify as Beating the Expert. 

• Potential Winner: A Potential Winner is a Participant who, during at least one (1) Round of the Promotion, (i) satisfies all eligibility, entry, and participation requirements; (ii) achieves a Round Score that exceeds the Expert Score for that specific Round; and (iii) is not otherwise disqualified. Potential Winners, including those entering via Method 2 who must mail in their digital form(s), are subject to verification for compliance and fraud purposes prior to being determined a Verified Winner or receiving any Prize.

• Verified Winner: A Verified Winner is a Potential Winner who has been verified by Sponsor, in its sole discretion, including verification of identity, eligibility, compliance with these Rules, absence of fraud or prohibited conduct, and satisfaction of all account‑verification and tax‑reporting requirements.

Sponsor may introduce additional or similar defined terms in promotional materials or FAQs consistent with these Rules.

4. How to Participate

There are two (2) methods of participation:

1. By Trading Prediction Contracts (“Method 1”), and

2. By Mail‑In (No Purchase) via a digital form (“Method 2”).

A Participant may choose either method but may only participate using one (1) method for each Round during the Promotion. Participation via both methods in any given Round, or attempts to circumvent this limitation, will result in disqualification as described below. For clarity, Participants may not use both Method 1 and Method 2 within the same Round; however, a Participant may elect to use a different method in a different Round.

4.1 Rules of Participation Applicable to Both Method 1 and Method 2

The following rules apply to all Participants, regardless of method of entry:

Maintaining or Changing Positions

• Maintaining Eligible Trades or Predictions through the entirety of the Promotion Period is not required; however, changes may impact eligibility.

• For Method 1: Participants may close, sell, or otherwise liquidate Eligible Trades prior to Market Closure. Such action will immediately void eligibility for that specific Eligible Trade. An Eligible Trade must remain open through Market Closure to remain eligible for participation in the Promotion.

• For Method 2: Participants may change their Predictions on the digital form prior to the applicable Market Closure and before the end of the Promotion Period, subject to any technical or timing limitations. Once a Market Closure occurs, Predictions for that Market are locked and cannot be amended.

Restrictions on Selecting All Markets

• For single‑outcome, multiple‑Market Playoffs Events (e.g., “Which player will score first in Game X”), a Participant may have multiple Eligible Trades or Predictions within that Event, but must not enter the same side (e.g., “yes”) in all available Markets within the Event. If a Participant does so, all otherwise Eligible Trades or Predictions within that Event may be voided for purposes of this Promotion.

• Additional fraud and abuse filters (e.g., restrictions related to multiple accounts, self‑dealing, or coordinated activity) may be applied by Sponsor in its sole discretion. Sponsor may disqualify any Participant whose pattern of activity it deems to be abusive, fraudulent, or inconsistent with fair‑play expectations.

Multiple Accounts and Methods of Entry

• Each Participant may enter using one (1) Coinbase account only.

• Participation by any person who attempts to cancel and create a new account, or who attempts to create an additional account during the Promotion Period, will be disqualified.

• Any attempt by any Participant to participate using multiple or different email addresses, multiple methods of entry, or any other method will void all of that Participant’s Eligible Trades or Predictions, and that Participant will be disqualified. Use of any automated system to participate is prohibited and will result in disqualification.

Disputes as to Identity

• In the event of a dispute over the identity of a Participant, only the Eligible Trades or Predictions of the authorized account holder of the email address associated with the Participant’s Coinbase account will be determinative. Participant may be required to provide identification to Sponsor or Administrator sufficient to show that they are the authorized account holder of the email account. The “authorized account holder” is the natural person assigned to the applicable email account.

Per‑Round AMOE and Mail‑In Limits

• If participating via Method 2, a Participant may submit at most one (1) completed digital form per Round. Mailing more than one form for the same Round does not increase your chances of winning and may result in disqualification for that Round.

4.2 Method 1 – Trading Prediction Contracts

To participate by trading prediction contracts:

1. Access the Predict Tab. Create or log into your Coinbase account and navigate to the “Predict” tab (or any successor interface where prediction markets are accessible). For existing Coinbase users, additional identity verification steps may be required prior to accessing the Predict tab.

2. Locate the Pro Basketball Playoffs “Beat the Expert” Markets. Find the Promotion’s hub or menu tab (e.g., “Pro Basketball and/or “Beat the Expert”) where eligible Pro Basketball Playoffs Events and Markets for each Round are grouped and clearly labeled with a blue diamond indicator. 

3. Make Eligible Trades in Qualifying Markets. During the Promotion Period and within the applicable Round window(s), make Eligible Trades in Markets designated by Sponsor as part of the Pro Basketball Playoffs “Beat the Expert” challenge.

4. Track Your Progress and Expert Performance. Sponsor will provide real‑time or near‑real‑time interfaces where Participants can view:

• Their own number of Correct Predictions and/or Round Score;

• The Expert’s performance (e.g., “You: 3 Correct | Expert: 2 Correct”); and

These displays are for informational and entertainment purposes only and do not affect eligibility, methods of entry, or a Participant’s chances of winning. Official determination of whether a Participant has Beaten the Expert and is a Potential Winner will be made by Sponsor after the conclusion of the applicable Round, based on a review of all relevant Promotion data for that Round, including final resolved market outcomes, eligibility checks, and fraud and abuse screening.

If you do not have a Coinbase account, you must provide required information as requested online at coinbase.com (inclusive of Social Security number) and complete the required ID verification process (upload a valid and current driver’s license, passport or state ID and complete a set of identity-verification questions) during account creation. There is no fee or charge to create an account and become a registered Coinbase user. Prediction Markets are offered by Coinbase Financial Markets ("CFM").  Normal internet access and usage charges imposed by each Participant’s mobile service provider may apply. By submitting your information, creating an account, and prior to making Eligible Trades you will be required to agree to the Futures Account Agreement, Coinbase User Agreement and Privacy Policy. If you do not agree to the Account and User Agreement, and Privacy Policy, you cannot participate in the Promotion via this Method 1. 

4.3 Method 2 – Make Predictions via Digital Form and Mail‑In (No Purchase)

To participate without trading prediction contracts, or without making a purchase or trade of any kind on Coinbase.com:

1. Create or Log Into a Coinbase Account. Log in to your existing Coinbase account, or if you do not have a Coinbase account, sign up by providing your name, email, and phone number. Sharing additional personal information as part of the identity verification process is not required to submit a mail‑in entry, but will be required to accept a Prize.

2. Access the Official Promotion Digital Form. Once logged in, visit the official Promotion digital form at: https://www.coinbase.com/sweepstakes/probball26_mailer (the “Mail‑In Form”). The Mail‑In Form will present a selection of Markets and Pro Basketball Playoffs Events for one or more Rounds of the Promotion.

3. Make Predictions for a Round. For each Round in which you wish to participate via Method 2, complete Predictions for that Round on the Mail‑In Form before the applicable Round deadline and before the relevant Market Closures. You may edit your Predictions on the digital form prior to Market Closure and before the applicable Round’s cut‑off time. After Market Closure for a Market, your Prediction for that Market is locked.

4. Submit and Print the Digital Form. Click the “Submit” button on the Mail‑In Form before the end of the applicable Round’s submission window (for example, within a period ending approximately fifteen (15) minutes after the conclusion of the last Pro Basketball Playoffs Event included in that Round). Submission will generate an official digital form containing your Predictions, timestamp, and other required information.

5. Mail the Printed Digital Form. Print the completed digital form and mail it in an envelope, with sufficient postage, to the address specified on the Mail‑In Form:

Pro Basketball Playoffs “Beat the Expert” Prediction Sweepstakes c/o Ventura Associates International LLC 494 8th Avenue, Suite 1700 New York, NY 10001

Mailing Deadline: For each Round, the printed and mailed digital form must be postmarked no later than the calendar day immediately following the date on which that Round ends, and received no later than seven (7) calendar days after that postmark deadline (the “Mail‑In Receipt Deadline”), as indicated on the Mail‑In Form and/or Rules Site. For Round 1, which is currently scheduled to end on June 2, 2026, mail‑in entries for Round 1 must be postmarked no later than June 3, 2026 and received no later than June 10, 2026. For Round 2, which is currently scheduled to end on June 17, 2026, mail‑in entries for Round 2 must be postmarked no later than June 18, 2026 and received no later than June 25, 2026.

The information contained on the printed and mailed digital form must match the data stored in Sponsor’s system at the time of your digital submission for that Round.

Requests for confirmation of receipt of mailed digital forms will not be acknowledged. Neither Sponsor nor Administrator is responsible for late, lost, damaged, stolen, incomplete, illegible, postage‑due, or misdirected mail. Proof of mailing does not constitute proof of delivery.

5. Market Timing, Volatility, and Changes to Eligible Trades or Predictions

Participants acknowledge that prediction markets are highly volatile and that the value and status of an Eligible Trade or Prediction can fluctuate rapidly due to market movements, news events, or technical latency. Released Parties assume no liability for “timing risk”—including risk that a Participant enters, exits, or modifies an Eligible Trade or Prediction at a disadvantageous time.

As probabilities or prices move closer to certainty, the cost to enter or modify an Eligible Trade or Prediction may increase. Upon Market Closure, all Eligible Trades and Predictions are final for purposes of this Promotion, and cannot be amended regardless of subsequent events or information.

6. Determination of Potential and Verified Winners; Beat the Expert; Prize Pools

6.1 Round‑Level Determination; Beat the Expert Mechanism

• For each Round, Sponsor will:

  1. Determine final market outcomes and resolve all Markets attributed to that Round;

  2. Calculate each Participant’s Round Score (total number of Correct Predictions in that Round);

  3. Calculate the Expert Score for the Expert Portfolio for that Round; and

  4. Apply anti‑fraud and anti‑gaming filters and any additional eligibility checks.

• Subject to these Rules, a Participant will generally be treated as having Beaten the Expert for a given Round if their Round Score exceeds Sponsor’s published Beat the Expert criteria for that Round.

• Participants who Beat the Expert in a Round, and who satisfy all other eligibility, entry, and verification requirements, will be deemed Potential Winners for that Round.

6.2 Prize Pool Structure; Multi‑Round and CB1 Tiering

Prizes will be awarded separately for each of the two (2) Pro-Basketball Playoffs Rounds described below, with prize pools designated per Round (each, a “Round Prize Pool”), as set forth in this Section.

The prize structure for this Promotion is as follows:

• Round 1 Prize Pool (5 Bitcoin Split): For Round 1 (currently scheduled for May 11–June 2, 2026), Sponsor will allocate a Round 1 prize pool consisting of five (5) Bitcoin (“BTC”) (the “Round 1 Prize Pool”) to be shared equally among all Verified Winners who Beat the Expert in Round 1 (each such share, a “Round 1 Prize”). If there are no Verified Winners for Round 1, Sponsor may, in its sole discretion, either (i) roll over the Round 1 Prize Pool to subsequent promotion(s), (ii) allocate it to other Participants at Sponsor's sole discretion, or (iii) not award the Round 1 Prize Pool.

• Grand Prize (Coinbase One Member Month Co‑Promotion): In addition to the Round 1 Prize Pool described above, Sponsor will offer one (1) separate special prize for Round 1 (the “Round 1 / Member Month Co‑Promotion Grand Prize” or “Grand Prize”). The Grand Prize consists of a trip for winner and one (1) guest to Los Angeles, California, currently scheduled for July 19–23, 2026, including:

  • Round‑trip economy‑class air transportation for two (2) from a major commercial airport near winner’s residence (as determined by Sponsor in its sole discretion) to Los Angeles, CA;

  • Private round‑trip ground transfers between the Los Angeles airport and the hotel;

  • Four (4) consecutive nights’ hotel accommodations in one (1) standard king‑bed room (double occupancy) at a hotel selected by Sponsor in its sole discretion;

  • Private round‑trip ground transfers between the hotel and the coaching session;

  • One (1) ninety‑minute (90‑minute) massage per person (for winner and guest) at the hotel spa;

  • One (1) $750 prepaid gift card (for dining or other expenses, subject to issuer’s terms and conditions); and

  • One (1) fully hosted basketball coaching session with professional basketball shooting coach Chris Matthews.

Eligibility for Grand Prize Drawing. Eligibility for the Round 1 / Member Month Co‑Promotion Special Prize Pool does not depend on Coinbase One membership status. Only Participants who are Verified Winners for Round 1 will be entered into a random drawing to select one (1) Grand Prize winner. Exactly one (1) Grand Prize will be awarded, and it will not be divided among multiple winners, except as otherwise required by law or as permitted under the substitution provisions of these Rules.

Round 2 Prize Pool (BTC Split): For Round 2 (currently scheduled for June 3–June 17, 2026), Sponsor will allocate a Round 2 prize pool consisting of Five (5) Bitcoin (the “Round 2 Prize Pool”), as determined by Sponsor at or about the time the Round 2 Prize Pool is funded based on the then‑prevailing BTC rate. The Round 2 Prize Pool will be awarded in BTC and shared equally among all Verified Winners who Beat the Expert in Round 2 (each such share, a “Round 2 Prize”). If there are no Verified Winners for Round 2, Sponsor may, in its sole discretion, either (i) roll over the Round 2 Prize Pool to subsequent promotion(s), (ii) allocate it to other Participants at Sponsor's sole discretion, or (iii) not award the Round 2 Prize Pool.

The Approximate Retail Value (“ARV”) of the Round 1 prize of five (5) Bitcoin is three hundred seventy-seven thousand four hundred thirty-six dollars and fifty-five cents ($377,436.55 USD). The ARV of the Round 2 prize of five (5) Bitcoin is three hundred seventy-seven thousand four hundred thirty-six dollars and fifty-five cents ($377,436.55 USD). The ARV of the Grand Prize is thirteen thousand nine hundred fifty dollars ($13,950 USD), comprised of approximately eleven thousand four hundred fifty dollars ($11,450 USD) for travel, accommodations, transfers, spa treatments, and gift card, plus approximately two thousand five hundred dollars ($2,500 USD) for the coaching session. The total approximate value of all prizes is eight hundred forty-four thousand three hundred ten dollars and forty-one cents ($844,310.41 USD). Actual value may vary depending on point of departure, travel dates, and other factors. Any difference between the ARV and actual value will not be awarded.

All prize values stated herein are in U.S. dollars and are based on the price of Bitcoin as of April 21, 2026.

Digital currency conversions to US Dollars or your local currency are treated as digital currency “sales”, and all the forgoing transactions may be charged a spread, processing, and a Coinbase Fee as described in the Coinbase pricing and fee disclosures at Coinbase Pricing and Fees. All winners who wish to sell the prize may do so by following the prompts within the Coinbase platform.

DISCLOSURE:  THE VALUE OF DIGITAL CURRENCY, OTHER THAN STABLECOINS, IS SUBJECT TO CHANGE, AND THERE CAN BE A SUBSTANTIAL RISK THAT IT COULD LOSE VALUE (POSSIBLY ALL VALUE) AS A RESULT OF BUYING, SELLING, OR HOLDING THE PRIZE.

Coinbase One is an automatically renewing subscription requiring recurring payments. For free‑trial subscribers, the free trial is available only when you sign up for a monthly Coinbase One plan. At the end of the trial period, you will be automatically opted in to a month‑to‑month paid subscription unless you cancel prior. You can cancel your subscription at any time, including during your free trial period, and you must cancel on or before the last day of your trial to avoid being charged. If you choose to become a Coinbase One member or activate a Coinbase One free trial in connection with this Member Month promotion, you must maintain an active Coinbase One membership status for the duration of the Member Month promotion in order to remain eligible to participate via that membership path (subject to these Rules). This active membership requirement does not apply to entrants who participate via Method 2. 

All details of prize pool allocation, including whether and how to apply fallback plans will be determined by Sponsor in its sole discretion, consistent with these Rules and applicable law. The odds of winning any prize depend on the number of eligible Participants and, where applicable, the number of Participants who qualify as Verified Winners for the relevant Round.

7. Winner Verification

NOTE: To receive any Prize in this Sweepstakes, all Potential Winners must have an active, fully verified Coinbase account at the time of awarding the Prize, as specified in these Rules.

• Potential Winners who entered via Method 2 will need to verify their Coinbase account, and agree to the Coinbase User Agreement and Privacy Policy within the time specified in their Winner notification email, or they will be ineligible to receive a Prize. Creating an account will require the collection of personal information for identity‑verification purposes, including a valid and current government‑issued ID and completion of identity‑verification questions.

• All Potential Winners are subject to verification by Sponsor, whose decisions are final and binding. A Participant is not a Winner of any Prize unless and until that Participant’s eligibility and compliance with all requirements to claim a Prize have been verified and fulfilled, and the Participant has been notified that verification is complete.

Sponsor may require Potential Winners to complete and return documentation, including but not limited to:

• IRS W‑9 or equivalent tax forms,

• Affidavit of Eligibility and Liability/Publicity Release (where lawful),

• Copies of government‑issued identification, and

• Any other documentation reasonably requested to confirm compliance with these Rules and applicable law.

Failure of a Potential Winner to timely complete required documentation, failure to pass any identity or account verification, or determination by Sponsor of non‑compliance with these Rules may result in such Potential Winner’s disqualification.

8. Prize Fulfillment and Prize Restrictions

Verified Winners will receive their Prize amount directly into their Coinbase account.

Prizes are anticipated to be fulfilled within approximately one to two (1–2) weeks after completion of winner verification for each Round, and in any event within a commercially reasonable time after the conclusion of the applicable Round(s), subject to operational constraints and verification of mail‑in entries.

The Released Parties shall not be liable for additional costs or expenses or risks that may be associated with the Grand Prize. Any unclaimed and/or unused prize element will remain the property of the Sponsor.  Resale of any aspect of the prize is prohibited. Potential winner must be able to attend the Grand Prize on the date as hereinabove specified or otherwise determined by Sponsor, or prize may be forfeited and an alternate winner may be selected. Upon prize forfeiture or inability to use a portion of the prize thereof, no compensation will be given, and Sponsor will have no further obligation to that Entrant.

Winner is solely responsible for any actions, claims or liabilities of his/her guest, related to the use or misuse of the prize or any prize-related activity. 

Prizes are awarded “as is” with no warranty or guarantee, either express or implied. Prizes are non-transferable and no substitution will be made except as provided herein at the Sponsor’s sole discretion. Sponsor reserves the right, where lawful, to substitute a prize for one (1) of equal or greater value if the designated prize should become unavailable for any reason. Prizes consist of only the items specifically listed as part of the prize. In no event will more than the stated number of prizes be awarded. Prize details not specifically stated in these Official Rules will be determined in Sponsor’s sole discretion. Sponsor is not responsible for, and will not replace, any lost, damaged, or stolen prize or prize component or any prize that is undeliverable. Winners acknowledge that Sponsor is subject to U.S. economic restrictions and trade sanctions; as such, Sponsor reserves the right to deny distribution of any prize when required by applicable law. Entrants waive the right to assert as a cost of winning a prize, any costs associated with claiming or seeking to claim a prize, or using a prize.

Prizes are non-transferable and no substitution will be made except as provided herein at the Sponsor’s sole discretion. Sponsor reserves the right, where lawful, to substitute a prize for one (1) of equal or greater value if the designated prize should become unavailable for any reason. Prizes consist of only the items specifically listed as part of the prize. In no event will more than the stated number of prizes be awarded. Prize details not specifically stated in these Official Rules will be determined in Sponsor’s sole discretion. Sponsor is not responsible for, and will not replace, any lost, damaged, or stolen prize or prize component or any prize that is undeliverable. Winners acknowledge that Sponsor is subject to U.S. economic restrictions and trade sanctions; as such, Sponsor reserves the right to deny distribution of any prize when required by applicable law. Entrants waive the right to assert as a cost of winning a prize, any costs associated with claiming or seeking to claim a prize, or using a prize.

9. Taxes

Verified Winners are solely responsible for any and all applicable federal, state, and local taxes related to any Prize(s). Sponsor may require each Verified Winner to provide tax‑reporting information (including, but not limited to, W‑9, name, date of birth, address, phone number, and Social Security number or taxpayer identification number, as applicable) before any Prize is awarded.

The value of any Prize awarded to a Verified Winner will be reported for tax purposes as required by law. Any person receiving at least two thousand dollars ($2,000.00) or more from Sponsor during a calendar year may receive an IRS Form 1099 at the end of the calendar year, and a copy of such form may be filed with the IRS. Each Verified Winner is required to notify Sponsor if any information provided hereunder changes, including the Verified Winner’s address.

10. Release

To the extent permitted by law, Participants agree to release, discharge, and hold harmless the Released Parties from and against any claim, cause of action, or liability (including but not limited to personal injury, death, or damage to or loss of property, as well as claims based on publicity rights, defamation, and/or invasion of privacy) arising out of or in connection with participation in the Sweepstakes or acceptance, receipt, use, or misuse of any Prize, and agree to be bound by these Rules and the decisions of Sponsor, Administrator, and/or Sponsor’s representatives.

Acceptance of a Prize constitutes permission for Sponsor and its agencies to use Verified Winner’s name, likeness, photograph, voice, and/or hometown and state for advertising and trade purposes worldwide, in any media, without further compensation, unless prohibited by law.

11. General Conditions

ANY ATTEMPT BY AN INDIVIDUAL TO DELIBERATELY UNDERMINE THE LEGITIMATE OPERATION OF THIS PROMOTION IS A VIOLATION OF CRIMINAL AND CIVIL LAWS. SHOULD SUCH AN ATTEMPT BE MADE, SPONSOR RESERVES THE RIGHT TO SEEK DAMAGES FROM ANY SUCH INDIVIDUAL TO THE FULLEST EXTENT PERMITTED BY LAW.

Neither Sponsor nor the Released Parties will be responsible for lost, late, damaged, misdirected, mutilated, or postage‑due mail; misdirected or undeliverable emails; or for any technical problems, faulty, lost, garbled, incomplete, incorrect, or mistranscribed data transmissions; incorrect announcements of any kind; or malfunctions, technical hardware or software failures of any kind, including any injury or damage to any person’s computer or mobile device related to or resulting from participating in or experiencing any materials in connection with this Promotion.

Neither Sponsor nor the Released Parties is responsible for malfunctions or breakdowns of any network systems; unavailable service connections; lost, incomplete, or faulty network connectivity of any kind; failures of any service providers; or any combination thereof, which may limit a person’s ability to participate in this Promotion.

Sponsor reserves the right to suspend, cancel, or modify the Promotion if it cannot be executed as planned for any reason, including, but not limited to, if fraud, human error, technical failures, or any other factor impairs the integrity or proper functioning of the Promotion; or if a virus, bug, or other technical problem corrupts the administration, security, or proper play of the Promotion, as determined by Sponsor in its sole discretion. If the Promotion is so canceled or modified, Sponsor may award Prizes, at its discretion, from among all non‑suspect eligible entries received prior to such action and shall have no further obligation to any Participant in connection with this Promotion.

Sponsor reserves the right to prohibit the participation of any individual if fraud or tampering is suspected. In the event of any discrepancy or inconsistency between disclosures or other statements contained in promotional materials and the terms and conditions of these Rules, these Rules shall prevail, govern, and control.

Neither Sponsor nor the Released Parties will be responsible for any typographical, printing, mechanical, human, network, or other error or problem relating to the Promotion, including, but not limited to, in connection with the administration of the Sweepstakes, the announcement of Prizes, the processing or tracking of entries, transactions, or trades, or in any Promotion‑related materials.

11. Disputes, Class Action Waiver, and Agreement to Arbitrate

Subject to the full terms of the Arbitration Agreement set forth in Appendix 1 below, you and Coinbase agree that any dispute, claim, or disagreement arising out of or relating in any way to this Promotion, including any dispute, claim, or cause of action relating to any Prizes awarded, and including any dispute, claim, or cause of action arising out of or related to the interpretation or application of this arbitration provision (each, a “Dispute”) will be resolved by binding arbitration, rather than in court, except that:

1. You or Coinbase may assert claims or seek relief in small claims court if such claims qualify and remain in small claims court; and

2. You or Coinbase may seek equitable relief in court for infringement or other misuse of intellectual property rights (such as trademarks, trade dress, domain names, trade secrets, copyrights, and patents).

The full terms of the Arbitration Agreement, including a class action and jury trial waiver and procedures for initiating arbitration, are set forth in Appendix 1 below. Please read those terms carefully.

12. Limitation of Liability

TO THE EXTENT PERMITTED BY LAW, IN NO EVENT SHALL THE RELEASED PARTIES BE LIABLE FOR (I) ANY AMOUNT GREATER THAN THE HIGHEST VALUE OF ANY SINGLE PRIZE OFFERED IN THIS PROMOTION; OR (II) ANY LOST PROFITS, OR ANY SPECIAL, INCIDENTAL, INDIRECT, INTANGIBLE, OR CONSEQUENTIAL DAMAGES, WHETHER BASED IN CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY, OR OTHERWISE, ARISING OUT OF OR IN CONNECTION WITH THE PROMOTION, EVEN IF AN AUTHORIZED REPRESENTATIVE OF SPONSOR OR ADMINISTRATOR KNEW OR SHOULD HAVE KNOWN OF THE POSSIBILITY OF SUCH DAMAGES, AND NOTWITHSTANDING THE FAILURE OF ANY AGREED OR OTHER REMEDY OF ITS ESSENTIAL PURPOSE, EXCEPT TO THE EXTENT A FINAL JUDICIAL DETERMINATION IS MADE THAT SUCH DAMAGES WERE THE RESULT OF SPONSOR OR ADMINISTRATOR’S GROSS NEGLIGENCE, FRAUD, WILLFUL MISCONDUCT, OR INTENTIONAL VIOLATION OF LAW.

13. Participant’s Personal Information

Information collected from Participants is subject to Coinbase’s Privacy Policy. Sponsor assures that your information will be kept confidential in accordance with applicable data protection laws and regulations. Data will be stored in the United States and may be shared with a third‑party fulfillment company only to administer this Sweepstakes, verify Potential Winners, and fulfill Prizes, unless you have given your prior express consent to receive additional information from Sponsor or a third party.

14. Verified Winners List

For a list of Verified Winners, send a stamped, self‑addressed envelope (return postage not required for Vermont residents) to:

Pro Basketball Playoffs “Beat the Expert” Prediction Sweepstakes Winners’ List c/o Ventura Associates International LLC 494 8th Avenue, Suite 1700 (Attn: KM) New York, NY 10001

Requests must be received byJuly 31, 2026. The Verified Winners list will be available after all Verified Winners have been determined and verified.

15. Sponsor and Administrator

SPONSOR: Coinbase Financial Markets, Inc. 1 Madison Ave, 24th Floor New York, NY 10010

ADMINISTRATOR: Ventura Associates International LLC 494 8th Avenue, Suite 1700 New York, NY 10001

Appendix 1 – Dispute and Arbitration Terms

1.1. Applicability of Arbitration Agreement. This Appendix 1 contains the full terms of the Arbitration Agreement. This Arbitration Agreement applies to Disputes defined in Section 12, above. Subject to the terms of this Arbitration Agreement, you and Coinbase agree that any dispute, claim, disagreements arising out of or relating in any way to your participation in the Promotion, including claims and disputes that arose between us before the effective date of these Rules (each, a “Dispute”) will be resolved by binding arbitration, rather than in court, except that: (1) you and Coinbase may assert claims or seek relief in small claims court if such claims qualify and remain in small claims court; and (2) you or Coinbase may seek equitable relief in court for infringement or other misuse of intellectual property rights (such as trademarks, trade dress, domain names, trade secrets, copyrights, and patents). For purposes of this Arbitration Agreement, “Dispute” will also include disputes that arose or involve facts occurring before the existence of this or any prior versions of the Rules as well as claims that may arise after the termination of the Rules. 

1.2. Waiver of Jury Trial.  YOU AND COINBASE HEREBY WAIVE ANY CONSTITUTIONAL AND STATUTORY RIGHTS TO SUE IN COURT AND HAVE A TRIAL IN FRONT OF A JUDGE OR A JURY. You and Coinbase are instead electing that all Disputes shall be resolved by arbitration under this Arbitration Agreement, except as specified in the subsection entitled “Applicability of Arbitration Agreement” above. There is no judge or jury in arbitration, and court review of an arbitration award is subject to very limited review. 

1.3. Waiver of Class and Other Non-Individualized Relief. YOU AND COINBASE AGREE THAT, EXCEPT AS SPECIFIED IN SUBSECTION 1.8, EACH OF US MAY BRING CLAIMS AGAINST THE OTHER ONLY ON AN INDIVIDUAL BASIS AND NOT ON A CLASS, REPRESENTATIVE, OR COLLECTIVE BASIS, AND THE PARTIES HEREBY WAIVE ALL RIGHTS TO HAVE ANY DISPUTE BE BROUGHT, HEARD, ADMINISTERED, RESOLVED, OR ARBITRATED ON A CLASS, COLLECTIVE, REPRESENTATIVE, OR MASS ACTION BASIS. ONLY INDIVIDUAL RELIEF IS AVAILABLE, AND DISPUTES OF MORE THAN ONE CUSTOMER OR USER CANNOT BE ARBITRATED OR CONSOLIDATED WITH THOSE OF ANY OTHER CUSTOMER OR USER. Subject to this Arbitration Agreement, the arbitrator may award declaratory or injunctive relief only in favor of the individual party seeking relief and only to the extent necessary to provide relief warranted by the party's individual claim. Nothing in this paragraph is intended to, nor shall it, affect the terms and conditions under the subsection 1.8 entitled “Batch Arbitration.” Notwithstanding anything to the contrary in this Arbitration Agreement, if a court decides by means of a final decision, not subject to any further appeal or recourse, that the limitations of this subsection, “Waiver of Class and Other Non-Individualized Relief,” are invalid or unenforceable as to a particular claim or request for relief (such as a request for public injunctive relief), you and Coinbase agree that that particular claim or request for relief (and only that particular claim or request for relief) shall be severed from the arbitration and may be litigated in the state or federal courts located in the State of California. All other Disputes shall be arbitrated or litigated in small claims court. This subsection does not prevent you or Coinbase from participating in a class-wide settlement of claims.

1.4. Rules and Forum.  These Rules evidence transactions involving interstate commerce; and notwithstanding any other provision herein with respect to the applicable substantive law, the Federal Arbitration Act, 9 U.S.C. § 1 et seq., will govern the interpretation and enforcement of this Arbitration Agreement and any arbitration proceedings. If you have a complaint with Coinbase, you agree to first contact Coinbase through our support team to attempt to resolve any such Dispute amicably. If we cannot resolve the Dispute through Coinbase Support, you agree to use the Formal Complaint Process set forth below before filing any arbitration claim or small claims action. You must complete the Formal Complaint Process before filing any arbitration or small claims action. If you do not complete it, then you agree that your claim or action must be dismissed from arbitration or small claims court.

 In the event that the dispute is not resolved through your contact with Coinbase Support, you agree to use our Formal Complaint Process complaint form to describe your dispute, how you would like us to resolve the complaint, and any other relevant information. The complaint form can be found here, or can be requested from Coinbase Customer Support. If you prefer to send a written complaint via mail, please include as much information as possible in describing your complaint and how you would like us to resolve the complaint, including your support case number and any other relevant information to Coinbase Inc., 82 Nassau St #61234, New York, NY 10038. We will acknowledge receipt of your complaint form after you submit it. A Coinbase customer relations agent will review and evaluate your complaint based on the information you have provided and information in the possession of Coinbase. The Formal Complaint Process is completed when Coinbase responds to your complaint or forty-five (45) business days after the date we receive your complaint, whichever occurs first.

If the Formal Complaint Process described above does not resolve satisfactorily within forty-five (45) business days after receipt of your complaint form, you and Coinbase agree that either party shall have the right to finally resolve the Dispute through binding arbitration. The arbitration will be administered by the American Arbitration Association (“AAA”), in accordance with the Consumer Arbitration Rules (the "AAA Rules") then in effect, except as modified by this section of this Arbitration Agreement. The AAA Rules are currently available at https://www.adr.org/sites/default/files/Consumer%20Rules.pdf. 

A party who wishes to initiate arbitration must provide the other party with a request for arbitration (the “Request”). If you initiate the arbitration, you must provide Coinbase a copy of your Request by email at arbitration@coinbase.com or through Coinbase’s registered agent for service of process. The Request must include: (1) the name, telephone number, mailing address, email address of the party seeking arbitration, and the email addresses associated with the applicable Coinbase account(s); (2) a statement of the legal claims being asserted and the factual bases of those claims; (3) a description of the remedy sought, including an accurate, good faith calculation of the amount in controversy in United States Dollars; (4) a statement certifying completion of the Formal Complaint Process as described above (if you are the party making the Request); and (5) evidence that the requesting party has paid any necessary filing fees in connection with such arbitration.  

If the party requesting arbitration is represented by counsel, the Request shall also include counsel’s name, telephone number, mailing address, and email address. Such counsel must also sign the Request. By signing the Request, counsel certifies to the best of counsel’s knowledge, information, and belief, formed after an inquiry reasonable under the circumstances, that: (1) the Request is not being presented for any improper purpose, such as to harass, cause unnecessary delay, or needlessly increase the cost of dispute resolution; (2) the claims, defenses and other legal contentions are warranted by existing law or by a nonfrivolous argument for extending, modifying, or reversing existing law or for establishing new law; and (3) the factual and damages contentions have evidentiary support or, if specifically so identified, will likely have evidentiary support after a reasonable opportunity for further investigation or discovery.  

Unless you and Coinbase otherwise agree, or the Batch Arbitration process discussed in subsection 1.8 is triggered, the arbitration will be conducted in the county where you reside. Disputes involving claims, counterclaims, or requests for relief under $25,000, not inclusive of attorneys’ fees and interest, will be conducted solely on the basis of documents you and Coinbase submit to the arbitrator. If your claim exceeds $25,000, your right to a hearing will be determined by the AAA Rules. Subject to the AAA Rules, the arbitrator may direct a limited and reasonable exchange of information between the parties, consistent with the expedited nature of the arbitration. If the AAA is not available to arbitrate, the parties will select an alternative arbitral forum. Your responsibility to pay any AAA fees and costs will be solely as set forth in the applicable AAA Rules.  

You and Coinbase agree that all materials and documents exchanged during the arbitration proceedings shall be kept confidential and shall not be shared with anyone except the parties’ attorneys, accountants, or business advisors, and then subject to the condition that they agree to keep all materials and documents exchanged during the arbitration proceedings confidential.  

1.5. Arbitrator. The arbitrator will be either a retired judge or an attorney licensed to practice law in the state of California and will be selected by the parties from the AAA's roster of consumer dispute arbitrators. If the parties are unable to agree upon an arbitrator within thirty-five (35) business days of delivery of the Request, then the AAA will appoint the arbitrator in accordance with the AAA Rules, provided that if the Batch Arbitration process under subsection 1.8 is triggered, the AAA will appoint the arbitrator for each batch.

1.6. Authority of Arbitrator. The arbitrator shall have exclusive authority to resolve any Dispute, including, without limitation, disputes arising out of or related to the interpretation or application of the Arbitration Agreement, including the enforceability, revocability, scope, or validity of the Arbitration Agreement or any portion of the Arbitration Agreement, except for the following: (1) all Disputes arising out of or relating to the Section entitled “Waiver of Class and Other Non-Individualized Relief,” including any claim that all or part of the Section entitled “Waiver of Class and Other Non-Individualized Relief” is unenforceable, illegal, void or voidable, or that such Section entitled “Waiver of Class and Other Non-Individualized Relief” has been breached, shall be decided by a court of competent jurisdiction and not by an arbitrator; (2) except as expressly contemplated in the subsection entitled “Batch Arbitration,” all Disputes about the payment of arbitration fees shall be decided only by a court of competent jurisdiction and not by an arbitrator; (3) all Disputes about whether either party has satisfied any condition precedent to arbitration shall be decided only by a court of competent jurisdiction and not by an arbitrator; and (4) all Disputes about which version of the Arbitration Agreement applies shall be decided only by a court of competent jurisdiction and not by an arbitrator. The arbitration proceeding will not be consolidated with any other matters or joined with any other cases or parties, except as expressly provided in the subsection entitled “Batch Arbitration.” The arbitrator shall have the authority to grant motions dispositive of all or part of any Dispute. The arbitrator shall issue a written award and statement of decision describing the essential findings and conclusions on which the award is based, including the calculation of any damages awarded. The award of the arbitrator is final and binding upon you and us. This means that, among other things, you and we agree that an arbitral award shall have no preclusive effect in any other proceeding involving other parties. Judgment on the arbitration award may be entered in any court having jurisdiction. In any award of damages, the arbitrator shall abide by the “Limitation of Liability” section of these Rules.

1.7. Attorneys’ Fees and Costs. The parties shall bear their own attorneys’ fees and costs in arbitration unless the arbitrator finds that either the substance of the Dispute or the relief sought in the Request was frivolous or was brought for an improper purpose (as measured by the standards set forth in Federal Rule of Civil Procedure 11(b)). If you or Coinbase need to invoke the authority of a court of competent jurisdiction to compel arbitration, then the party that obtains an order compelling arbitration in such action shall have the right to collect from the other party its reasonable costs, necessary disbursements, and reasonable attorneys' fees incurred in securing an order compelling arbitration. The prevailing party in any court action relating to whether either party has satisfied any condition precedent to arbitration, including the Formal Complaint Process, is entitled to recover their reasonable costs, necessary disbursements, and reasonable attorneys’ fees and costs. 

1.8. Batch Arbitration. To increase the efficiency of administration and resolution of arbitrations, you and Coinbase agree that in the event that there are one hundred (100) or more individual Requests of a substantially similar nature filed against Coinbase by or with the assistance of the same law firm, group of law firms, or organizations, within a thirty (30) day period (or as soon as possible thereafter), the AAA shall (1) administer the arbitration demands in batches of 100 Requests per batch (plus, to the extent there are less than 100 Requests left over after the batching described above, a final batch consisting of the remaining Requests); (2) appoint one arbitrator for each batch; and (3) provide for the resolution of each batch as a single consolidated arbitration with one set of filing and administrative fees due per side per batch, one procedural calendar, one hearing (if any) in a place to be determined by the arbitrator, and one final award (“Batch Arbitration”).

All parties agree that Requests are of a “substantially similar nature” if they arise out of or relate to the same event or factual scenario and raise the same or similar legal issues and seek the same or similar relief. To the extent the parties disagree on the application of the Batch Arbitration process, the disagreeing party shall advise the AAA, and the AAA shall appoint a sole standing arbitrator to determine the applicability of the Batch Arbitration process (“Administrative Arbitrator”). In an effort to expedite resolution of any such dispute by the Administrative Arbitrator, the parties agree the Administrative Arbitrator may set forth such procedures as are necessary to resolve any disputes promptly. The Administrative Arbitrator’s fees shall be paid by Coinbase.

You and Coinbase agree to cooperate in good faith with the AAA to implement the Batch Arbitration process including the payment of single filing and administrative fees for batches of Requests, as well as any steps to minimize the time and costs of arbitration, which may include: (1) the appointment of a discovery special master to assist the arbitrator in the resolution of discovery disputes; and (2) the adoption of an expedited calendar of the arbitration proceedings.

This Batch Arbitration provision shall in no way be interpreted as authorizing a class, collective and/or mass arbitration or action of any kind, or arbitration involving joint or consolidated claims under any circumstances, except as expressly set forth in this provision.