Resolution criteria on PolyGram: This market refers to the doubles tennis match between Beckley/Donski and Santillan/Zheng in the Centurion, originally scheduled for May 26, 2026 at 4:00AM ET. This market will resolve to 'Beckley/Donski' if the team of Beckley/Donski advances against Santillan/Zheng. This market will resolve to 'Santillan/Zheng' if the team of Santillan/Zheng advances against Beckley/Donski. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.
PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.
Market outcomes
| Completed Match | 100% YES | 0% NO |
| Centurion (Doubles): Beckley/Donski vs Santillan/Zheng | 100% YES | 0% NO |
A doubles tennis match between Beckley/Donski and Santillan/Zheng is scheduled for the Centurion event on 26 May 2026 at 4:00 AM ET. The current orderbook on Polymarket reflects a 100% implied probability for Beckley/Donski advancing, suggesting the market has priced in either a strong expectation of their victory or, more likely given the extreme probability, significant uncertainty about match completion itself. The settlement window closes on 2 June 2026, allowing a seven-day buffer before the market resolves to a 50-50 split if the match remains unplayed or unresolved.
Doubles matches at lower-tier events frequently exhibit high cancellation or postponement rates due to scheduling conflicts, player withdrawals, and weather disruptions. The 100% probability here likely reflects the resolution mechanics rather than confidence in a specific outcome—markets pricing near certainty often indicate traders are hedging against the tie or cancellation clause rather than backing either team decisively. Historical patterns from comparable Challenger-level tournaments show that early-morning matches face elevated postponement risk.
Traders should monitor official Centurion draw announcements and player injury reports through late May. The ATP's official website and tournament updates will confirm final pairings and any schedule adjustments. Weather forecasts for the Centurion venue in the week prior to 26 May will be material, as will any late player withdrawals. The extreme probability suggests the market is pricing in substantial execution risk rather than a clear favourite, making actual match confirmation the primary catalyst for repricing.
This market settles from the official outcome published at https://www.atptour.com/en/scores/current. A proposer submits the final result to the UMA optimistic oracle on Polygon; the two-hour dispute window closes and payouts clear in USDC.
The mechanics for trading "Centurion (Doubles): Beckley/Donski vs Santillan/Zheng" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.
$5 in lifetime turnover and $0 of resting liquidity puts this market in the below the median by volume for tennis contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.
The market has been open for under a month — fresh enough that information asymmetry remains a real factor.
Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.
Resolution is sourced from https://www.atptour.com/en/scores/current. Settlement is executed by the UMA optimistic oracle on Polygon, with a 2-hour dispute window before payouts clear.
This prediction market is scheduled to close on 2 June 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.
To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.
When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.
Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.
Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.
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