Resolution criteria on PolyGram: This market refers to the doubles tennis match between Corley/Cross and Hruncakova/Valdmannova in the Birmingham, originally scheduled for June 2, 2026 at 5:30AM ET. This market will resolve to 'Corley/Cross' if the team of Corley/Cross advances against Hruncakova/Valdmannova. This market will resolve to 'Hruncakova/Valdmannova' if the team of Hruncakova/Valdmannova advances against Corley/Cross. 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
| Completed Match | 50% YES | 50% NO |
| Birmingham (Doubles): Corley/Cross vs Hruncakova/Valdmannova | 22% YES | 78% NO |
The Birmingham doubles draw will feature American pairing Corley/Cross against the Slovak-Czech combination of Hruncakova/Valdmannova in a grass-court encounter scheduled for early June 2026. The current 50-50 split on Polymarket's order book reflects genuine uncertainty between two pairings with distinct playing profiles on the surface. Settlement hinges on match completion by 9 June; any cancellation, postponement beyond seven days, or unresolved outcome triggers a 50-50 resolution.
Comparable grass doubles fixtures at Birmingham-level tournaments typically favour pairings with established chemistry and recent hard-court form, as the transition to grass requires minimal adjustment time. Corley/Cross's recent performance trajectory and seeding status relative to Hruncakova/Valdmannova will determine whether the current even odds undervalue either team. Historical data from similar WTA 500 doubles draws suggests that unseeded or lower-ranked pairings face structural disadvantages in early rounds, though upset potential remains material on grass where serve-and-volley tactics can neutralise ranking disparities.
Traders should monitor official Birmingham tournament announcements regarding final seedings, which typically release 7–10 days before competition begins. Recent injury reports or late withdrawals from either pairing could shift the order book substantially. Court conditions at Birmingham's grass surface, historically faster than comparable venues, may favour whichever team possesses superior net play and first-serve consistency. The settlement window closing on 9 June allows minimal buffer for weather delays, making fixture scheduling announcements critical data points for position management.
This market settles from the official outcome published at https://www.wtatennis.com/scores. 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 "Birmingham (Doubles): Corley/Cross vs Hruncakova/Valdmannova" 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.
$1K in lifetime turnover and $294 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.
Last 24 hours alone saw $159 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.wtatennis.com/scores. 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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