Resolution criteria on PolyGram: This market refers to the doubles tennis match between Clarke/Jones and Barton/Vrbensky in the Tunis, originally scheduled for May 14, 2026 at 4:00AM ET. This market will resolve to 'Clarke/Jones' if the team of Clarke/Jones advances against Barton/Vrbensky. This market will resolve to 'Barton/Vrbensky' if the team of Barton/Vrbensky advances against Clarke/Jones. 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
| Tunis (Doubles): Clarke/Jones vs Barton/Vrbensky | 50% YES | 50% NO |
| Completed Match | 50% YES | 50% NO |
Clarke and Jones face Barton and Vrbensky in a doubles match at the Tunis tournament, originally scheduled for 14 May 2026. The match sits at even odds on Polymarket's order book, with the 50% implied probability reflecting genuine uncertainty between two competitive pairings. Settlement occurs on 21 May, allowing a seven-day window for completion; any cancellation, tie, or delay beyond that threshold triggers a 50-50 resolution.
Doubles tennis markets typically reflect partnership stability and recent form more heavily than singles markets do. Clarke and Jones's combined ranking and recent tournament results against comparable opposition provide the baseline for assessing their probability. Barton and Vrbensky's pairing history, court surface preference (clay at Tunis), and head-to-head record against Clarke/Jones—if available—anchor the counterweight. Markets of this specificity often trade near 50-50 when both teams have credible credentials but limited recent direct comparison data.
Traders should monitor tournament scheduling announcements and any player injury reports through early May, as both partnerships depend on full availability. Weather delays are possible in Tunisia during May, though unlikely to exceed the seven-day buffer. The order book depth will shift if either pairing withdraws or if recent warm-up tournament results provide new information on form. Court conditions and draw positioning, typically confirmed days before play, may trigger repricing as match-specific factors become concrete.
Traditionally, tennis is played between two people in a singles match, or two pairs in a doubles match. Tennis can also be played on different courts, including grass courts, clay courts, hard courts, and artificial grass courts.
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 "Tunis (Doubles): Clarke/Jones vs Barton/Vrbensky" 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.
$0 in lifetime turnover and $67 of resting liquidity puts this market in the below the median by volume for games 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 21 May 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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