Resolution criteria on PolyGram: This market refers to the doubles tennis match between Riedi/Schoolkate and Escobar/Kittay in the Birmingham, originally scheduled for June 2, 2026 at 5:00AM ET. This market will resolve to 'Riedi/Schoolkate' if the team of Riedi/Schoolkate advances against Escobar/Kittay. This market will resolve to 'Escobar/Kittay' if the team of Escobar/Kittay advances against Riedi/Schoolkate. 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
| Birmingham (Doubles): Riedi/Schoolkate vs Escobar/Kittay | 50% YES | 50% NO |
| Completed Match | 50% YES | 50% NO |
The doubles pairing of Riedi and Schoolkate faces Escobar and Kittay at Birmingham in early June 2026, with the match originally scheduled for 5:00 AM ET on 2 June. The current order book on Polymarket reflects a 59% implied probability favouring Riedi/Schoolkate, suggesting traders assess them as slight favourites in what appears to be a competitive matchup at a grass-court event.
Historical performance data on comparable grass-court doubles pairings shows that seeding and recent form carry substantial weight in early-round matches. Riedi and Schoolkate's ranking relative to their opponents, combined with any recent tournament results or head-to-head records, would typically anchor baseline expectations. The 59% probability sits in the range where neither pairing commands overwhelming confidence, indicating the market perceives meaningful uncertainty about match outcome.
Key variables for traders to monitor include official draw confirmation, any last-minute withdrawals or substitutions that could trigger the 50-50 tie resolution clause, and weather conditions affecting grass-court play in early June. Injury announcements or changes to either player's schedule in the weeks preceding the event could shift the probability meaningfully. The settlement window closes 9 June at 09:00 UTC, providing a seven-day buffer for match completion; any delay beyond that triggers the tie resolution. Current market pricing reflects standard pre-event uncertainty without obvious information asymmetries.
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 "Birmingham (Doubles): Riedi/Schoolkate vs Escobar/Kittay" 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.
$10 in lifetime turnover and $2 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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