Resolution criteria on PolyGram: This market refers to the doubles tennis match between Galan/Silva and Dodig/Mikrut in the Heilbronn, originally scheduled for June 2, 2026 at 4:00AM ET. This market will resolve to 'Galan/Silva' if the team of Galan/Silva advances against Dodig/Mikrut. This market will resolve to 'Dodig/Mikrut' if the team of Dodig/Mikrut advances against Galan/Silva. 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): Galan/Silva vs Dodig/Mikrut | 50% YES | 50% NO |
| Completed Match | 50% YES | 50% NO |
Galan and Silva face Dodig and Mikrut in the doubles draw at the Heilbronn grass-court tournament, scheduled for early June 2026. The current order book on Polymarket reflects a 50-50 split, indicating genuine uncertainty amongst traders about which pairing advances from this first or second-round encounter. Grass-court doubles often produce volatile results given the surface's emphasis on serve-and-volley play and reduced reaction time, which can favour either pairing depending on form and court conditions on the day.
Historical context suggests that Dodig, an experienced doubles player with multiple ATP titles and Grand Slam runs, typically performs well on faster surfaces. Silva and Galan, meanwhile, represent a pairing with less established grass-court pedigree as a unit, though both possess solid baseline credentials. The 50-50 pricing reflects the absence of clear statistical dominance between these combinations; comparable grass-court doubles matchups at this tier have historically split outcomes fairly evenly when neither pairing holds a significant ranking advantage.
Traders should monitor official tournament draws and any late withdrawals or injury reports in the week preceding 2 June, as grass-court tournaments occasionally see last-minute changes. The settlement window extends to 9 June, allowing a seven-day buffer for delayed matches. Weather conditions at Heilbronn—particularly rain, which can affect grass maintenance and match scheduling—represent a material catalyst. Confirmation of the exact match time and court assignment typically arrives 24–48 hours before play.
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): Galan/Silva vs Dodig/Mikrut" 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 $1 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 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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