Resolution criteria on PolyGram: This market refers to the doubles tennis match between Jung/Uesugi and Martinez/Vervoort in the Heilbronn, originally scheduled for June 3, 2026 at 8:30AM ET. This market will resolve to 'Jung/Uesugi' if the team of Jung/Uesugi advances against Martinez/Vervoort. This market will resolve to 'Martinez/Vervoort' if the team of Martinez/Vervoort advances against Jung/Uesugi. 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
| Heilbronn (Doubles): Jung/Uesugi vs Martinez/Vervoort | 100% YES | 0% NO |
| Completed Match | 100% YES | 0% NO |
A doubles tennis match between Jung/Uesugi and Martinez/Vervoort is scheduled for 3 June 2026 at the Heilbronn tournament. The market currently reflects a 100% implied probability for Jung/Uesugi's advancement, as shown across Polymarket's order book. This extreme pricing suggests either overwhelming confidence in one pairing's superiority or minimal liquidity at current levels, which typically occurs when traders perceive an outcome as heavily favoured but haven't yet committed significant capital to tighten spreads.
Doubles pairings at lower-tier ATP 250 events like Heilbronn frequently feature volatile matchups between established partnerships and emerging combinations. Historical precedent indicates that 100% implied probabilities in tennis markets often reflect information asymmetries rather than genuine certainty—player injuries, last-minute withdrawals, or unexpected form shifts have regularly upended such positions. The Jung/Uesugi pairing's recent performance record and head-to-head history against Martinez/Vervoort would be critical reference points; if either player carries injury concerns or the pairing lacks recent tournament experience together, the current pricing warrants scrutiny.
Key catalysts before the settlement window closes on 10 June include official tournament draw confirmations, any player withdrawal announcements, and weather disruptions that could delay proceedings beyond the seven-day threshold triggering a 50-50 resolution. Traders should monitor ATP injury reports and Heilbronn's official schedule updates through early June, as these typically surface 48–72 hours before matches. The wide gap between current pricing and realistic uncertainty suggests potential value exists for contrarian positions if new information emerges.
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 "Heilbronn (Doubles): Jung/Uesugi vs Martinez/Vervoort" 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.
$103 in lifetime turnover and $0 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.
Last 24 hours alone saw $20 in turnover, well above the lifetime daily-average for this market — a clear sign of news catalysing trader activity right now.
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 10 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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