Resolution criteria on PolyGram: This market refers to the doubles tennis match between Day/Stoiana and Charaeva/Rakhimova in the Birmingham, originally scheduled for June 2, 2026 at 5:30AM ET. This market will resolve to 'Day/Stoiana' if the team of Day/Stoiana advances against Charaeva/Rakhimova. This market will resolve to 'Charaeva/Rakhimova' if the team of Charaeva/Rakhimova advances against Day/Stoiana. 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): Day/Stoiana vs Charaeva/Rakhimova | 41% YES | 59% NO |
| Completed Match | 50% YES | 50% NO |
Day and Stoiana face Charaeva and Rakhimova in a doubles match at Birmingham, originally scheduled for 2 June 2026. The current order book on Polymarket reflects a 41% implied probability for Day/Stoiana's advancement, suggesting the market views Charaeva/Rakhimova as slight favourites. This probability has formed through the aggregated positions of traders responding to the pairing dynamics, recent form, and surface conditions at the Birmingham venue, which typically favours certain playing styles on grass.
Doubles pairings at grass-court events often show volatile outcomes compared to singles, with chemistry and serve-and-volley capability proving decisive. Historical precedent suggests that unseeded or lower-ranked pairings frequently outperform expectations on grass, particularly when one player brings strong net play. The 41% probability for Day/Stoiana reflects uncertainty around partnership cohesion and recent match fitness, factors that typically compress probability ranges in doubles markets as the event date approaches.
Traders should monitor official WTA scheduling confirmations and any late withdrawals or substitutions, which remain common in doubles draws. Surface conditions at Birmingham—grass court maintenance, weather forecasts, and court speed—will influence tactical matchups in the days before play. The settlement window closes 9 June at 09:30 UTC, allowing a seven-day buffer for delayed matches. Any announcement regarding player injury or partnership changes would likely shift the order book materially.
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): Day/Stoiana vs Charaeva/Rakhimova" 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 $4 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.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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