Resolution criteria on PolyGram: This market refers to the doubles tennis match between Broom/Stevenson and Kirkov/Peers in the Birmingham, originally scheduled for June 2, 2026 at 5:00AM ET. This market will resolve to 'Broom/Stevenson' if the team of Broom/Stevenson advances against Kirkov/Peers. This market will resolve to 'Kirkov/Peers' if the team of Kirkov/Peers advances against Broom/Stevenson. 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): Broom/Stevenson vs Kirkov/Peers | 56% YES | 44% NO |
| Completed Match | 50% YES | 50% NO |
Broom and Stevenson face Kirkov and Peers in a doubles match at Birmingham scheduled for early June 2026. The current order book on Polymarket reflects a 56% probability for Broom/Stevenson to advance, suggesting the market views them as slight favourites. This pricing emerges from real-time trading activity rather than a single source, with the spread between bid and ask orders determining the implied probability traders are willing to transact at today.
Comparable doubles pairings at ATP 250 events like Birmingham typically see established teams favoured when one pairing has stronger recent form or ranking points. Broom and Stevenson's historical performance against similar-ranked opponents, alongside Kirkov and Peers' recent results on grass courts, would inform how traders calibrate the 56% mark. Shifts in this probability often correlate with changes in player fitness, recent tournament outcomes, or surface-specific strengths that emerge in the weeks before competition.
The settlement window closes 9 June 2026, allowing seven days for the match to complete. Traders should monitor official ATP scheduling announcements for any postponements, withdrawals due to injury, or format changes that could trigger the 50-50 tie-break resolution. Weather disruptions are common at Birmingham given the early June timing and British climate conditions. Any confirmed absences or late-stage partnership changes would likely move the order book substantially, as would unexpected results from warm-up tournaments in late May that shift perceived form.
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): Broom/Stevenson vs Kirkov/Peers" 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.
$17 in lifetime turnover and $13 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 $7 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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