Resolution criteria on PolyGram: This market refers to the doubles tennis match between Handel/Poertner and Serdarusic/Vrbensky in the Heilbronn, originally scheduled for June 2, 2026 at 4:00AM ET. This market will resolve to 'Handel/Poertner' if the team of Handel/Poertner advances against Serdarusic/Vrbensky. This market will resolve to 'Serdarusic/Vrbensky' if the team of Serdarusic/Vrbensky advances against Handel/Poertner. 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): Handel/Poertner vs Serdarusic/Vrbensky | 0% YES | 100% NO |
| Completed Match | 100% YES | 0% NO |
A doubles tennis match between Handel/Poertner and Serdarusic/Vrbensky is scheduled for the Heilbronn tournament on 2 June 2026. The market currently shows 0% implied probability for Handel/Poertner to advance, reflecting either strong conviction in their opponents or minimal trading activity on the order book. With settlement occurring by 9 June 2026, traders have a narrow window to assess match outcomes and any scheduling disruptions.
The 0% probability reading warrants scrutiny given that professional doubles matches rarely present certainties. Comparable lower-tier ATP and WTA doubles events frequently see upsets when seeding disparities exist, though the specific ranking differential between these pairings would determine baseline expectations. The current probability likely reflects either thin liquidity on Polymarket's order book for this particular match, with minimal backing for the favourite, or a decisive seeding advantage for Serdarusic/Vrbensky that has consolidated trader positioning entirely toward that outcome.
Key variables affecting resolution include player availability and fitness status in the week preceding the match, weather conditions at Heilbronn that might favour certain playing styles, and any late withdrawals or schedule changes. The six-day window between the scheduled date and settlement deadline creates risk if matches are postponed; delays exceeding seven days would trigger a 50-50 resolution regardless of eventual result. Traders should monitor official Heilbronn tournament updates and player injury reports through early June, as doubles partnerships can shift rapidly when individual players face competing commitments on the professional calendar.
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): Handel/Poertner vs Serdarusic/Vrbensky" are the same as any other PolyGram sporting 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.
$10 in lifetime turnover and $0 of resting liquidity puts this market in the below the median by volume for sports 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 $10 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 9 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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