Resolution criteria on PolyGram: This market refers to the doubles tennis match between Drzewiecki/Matuszewski and Kolar/Vocel in the Prostejov, originally scheduled for June 4, 2026 at 6:30AM ET. This market will resolve to 'Drzewiecki/Matuszewski' if the team of Drzewiecki/Matuszewski advances against Kolar/Vocel. This market will resolve to 'Kolar/Vocel' if the team of Kolar/Vocel advances against Drzewiecki/Matuszewski. 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
| Prostejov (Doubles): Drzewiecki/Matuszewski vs Kolar/Vocel | 42% YES | 59% NO |
| Completed Match | 50% YES | 50% NO |
The Prostejov doubles draw will feature a meeting between the Polish pairing of Drzewiecki and Matuszewski against the Czech combination of Kolar and Vocel in what is scheduled as an early-round fixture on 4 June 2026. The match represents a domestic Central European encounter on the ATP Challenger circuit, where seeding and recent form typically carry substantial weight in determining outcomes. The current Polymarket order book is pricing Drzewiecki/Matuszewski at 40 per cent implied probability, suggesting the market views Kolar/Vocel as slight favourites heading into the contest.
Doubles pairings at Challenger level show considerable variance depending on partnership stability and recent tournament results. Polish pairings have historically performed competitively at mid-tier events, though Czech players have demonstrated particular strength on home soil and regional circuits. The 40 per cent probability reflects uncertainty around both teams' current form and whether either pairing has competed together recently or is making a first appearance as a unit. Comparable Challenger doubles matches typically see probabilities cluster between 35–55 per cent when domestic rivals of similar ranking meet.
Traders should monitor official ATP Challenger draws and any last-minute withdrawals, which remain common in doubles given the voluntary nature of partnership commitments. Injury updates or late partner substitutions could materially shift the order book in the days before 4 June. The settlement window extends to 11 June, allowing a seven-day buffer for rescheduling; any cancellation or unresolved outcome triggers a 50–50 resolution.
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 "Prostejov (Doubles): Drzewiecki/Matuszewski vs Kolar/Vocel" 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.
$634 in lifetime turnover and $27 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 $634 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 11 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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