Resolution criteria on PolyGram: This market refers to the doubles tennis match between Barrientos/Behar and Varona/Diez in the Valencia, originally scheduled for May 15, 2026 at 4:30AM ET. This market will resolve to 'Barrientos/Behar' if the team of Barrientos/Behar advances against Varona/Diez. This market will resolve to 'Varona/Diez' if the team of Varona/Diez advances against Barrientos/Behar. 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
| Valencia (Doubles): Barrientos/Behar vs Varona/Diez | 50% YES | 50% NO |
| Completed Match | 50% YES | 51% NO |
Barrientos and Behar face Varona and Diez in a doubles match at the Valencia tournament, originally scheduled for 15 May 2026. The current order book on Polymarket reflects an even split at 50% implied probability, suggesting traders see genuine uncertainty between the two pairings. This equilibrium price indicates neither team commands a clear advantage in the market's assessment, though the settlement window extends to 22 May, allowing a week's buffer for scheduling adjustments or delays.
Comparable ATP doubles matchups at Valencia historically show volatile probabilities when seeding disparities exist or when one pairing has recent momentum from preceding tournaments. The 50-50 pricing here suggests either balanced head-to-head records, similar ranking compositions, or insufficient recent form data to differentiate the teams in traders' models. Doubles outcomes remain less predictable than singles, with partnership chemistry and court-specific conditions carrying outsized weight.
Key catalysts include official tournament draw confirmations, any injury announcements affecting player availability, and weather conditions affecting the clay court surface in the days preceding the match. Traders should monitor ATP communications for schedule changes, as the seven-day grace period in the resolution criteria means delays beyond 22 May trigger a 50-50 outcome. Recent tournament results from both pairings in the weeks leading to Valencia will likely shift the order book as match day approaches.
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 "Valencia (Doubles): Barrientos/Behar vs Varona/Diez" 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 $118 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 22 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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