Resolution criteria on PolyGram: This market refers to the doubles tennis match between Gornes/Walkow and Blanch/Hernandez in the Tunis, originally scheduled for May 15, 2026 at 8:30AM ET. This market will resolve to 'Gornes/Walkow' if the team of Gornes/Walkow advances against Blanch/Hernandez. This market will resolve to 'Blanch/Hernandez' if the team of Blanch/Hernandez advances against Gornes/Walkow. 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): Gornes/Walkow vs Blanch/Hernandez | 76% YES | 25% NO |
| Completed Match | 50% YES | 50% NO |
| Tunis (Doubles): Gornes/Walkow vs Blanch/Hernandez Set 1 O/U 8.5 | 50% YES | 50% NO |
| Tunis (Doubles): Gornes/Walkow vs Blanch/Hernandez Total Sets: O/U 2.5 | 51% YES | 50% NO |
| Tunis (Doubles): Gornes/Walkow vs Blanch/Hernandez Match O/U 21.5 | 50% YES | 50% NO |
| Tunis (Doubles): Gornes/Walkow vs Blanch/Hernandez Set 1 O/U 9.5 | 51% YES | 50% NO |
| Tunis (Doubles): Gornes/Walkow vs Blanch/Hernandez Match O/U 22.5 | 50% YES | 50% NO |
| Tunis (Doubles): Gornes/Walkow vs Blanch/Hernandez Set 1 O/U 10.5 | 50% YES | 50% NO |
Gornes and Walkow face Blanch and Hernandez in a doubles match at the Tunis tournament, originally scheduled for 15 May 2026. The current order book on Polymarket reflects a 76% implied probability favouring Gornes/Walkow, suggesting the market views them as clear favourites to advance from this fixture.
Doubles pairings at ATP 250 level tournaments like Tunis typically favour established partnerships with consistent ranking points and recent match practice together. Gornes/Walkow command the higher probability, which aligns with standard market behaviour where seeding, recent form, and head-to-head records against comparable opposition shape pricing. Historical data from similar clay-court doubles events shows that unseeded or lower-ranked pairings rarely overturn such probability gaps unless one pairing has specific tactical advantages or recent momentum shifts.
Traders should monitor tournament draw confirmations and any late withdrawals or substitutions in the days preceding 15 May, as injury or scheduling conflicts occasionally force changes that can shift probabilities materially. Polymarket's settlement window closes 22 May at 12:30 UTC, allowing a seven-day buffer for delayed matches. Watch for any official ATP communications regarding court assignments or weather delays, which could compress preparation time for either pairing. Recent form updates from both teams' performances at preceding tournaments will provide concrete data points for reassessing the current 76% mark as the event approaches.
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): Gornes/Walkow vs Blanch/Hernandez" 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 $253 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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