Resolution criteria on PolyGram: This market refers to the tennis match between Alex Molcan and Vitaliy Sachko in the Prostejov, originally scheduled for June 5, 2026 at 4:00AM ET. This market will resolve to 'Alex Molcan' if Alex Molcan advances against Vitaliy Sachko. This market will resolve to 'Vitaliy Sachko' if Vitaliy Sachko advances against Alex Molcan. 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. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
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: Alex Molcan vs Vitaliy Sachko | 75% YES | 26% NO |
| Completed Match | 55% YES | 45% NO |
| Prostejov: Alex Molcan vs Vitaliy Sachko Match O/U 21.5 | 45% YES | 55% NO |
| Prostejov: Alex Molcan vs Vitaliy Sachko Set 1 Winner | 70% YES | 31% NO |
| Prostejov: Alex Molcan vs Vitaliy Sachko Total Sets: O/U 2.5 | 36% YES | 64% NO |
| Prostejov: Alex Molcan vs Vitaliy Sachko Set 1 O/U 8.5 | 67% YES | 33% NO |
| Prostejov: Alex Molcan vs Vitaliy Sachko Match O/U 22.5 | 40% YES | 60% NO |
| Prostejov: Alex Molcan vs Vitaliy Sachko Set 1 O/U 9.5 | 50% YES | 50% NO |
Alex Molcan, the Slovak player ranked in the ATP's mid-tier, faces Vitaliy Sachko at the Prostejov tournament in the Czech Republic on 5 June 2026. The match is scheduled for 4:00 AM ET. Molcan's home-region advantage—Prostejov sits roughly 200 kilometres from the Slovak border—typically confers modest edge in European clay tournaments, though the early morning scheduling may affect performance patterns for both players. The current order book on Polymarket reflects 76% implied probability for Molcan's advancement, suggesting the market has already priced in his seeding status and regional proximity.
Historical ATP Challenger and lower-tier main draw matches show that home-region players win approximately 58–62% of the time when competing within 500 kilometres of their national base, particularly on clay. Sachko, a Ukrainian player, lacks this geographical advantage. Molcan's recent form and ranking trajectory relative to Sachko's will determine whether the current 76% probability overweights or underweights the structural factors. Comparable Prostejov editions have seen seeded players advance at rates consistent with their ranking differential.
Traders should monitor official ATP communications regarding final seedings, any late withdrawals, and court conditions in the days before 5 June. Weather forecasts for Prostejov in early June—particularly rainfall, which could delay or reschedule the match—represent a material catalyst. The settlement window closes 12 June at 08:00 UTC, allowing a seven-day buffer for rescheduling before the 50-50 resolution clause activates.
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: Alex Molcan vs Vitaliy Sachko" 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.
$9K in lifetime turnover and $75K of resting liquidity puts this market in the below the median by volume for tennis contracts on PolyGram. Order-book depth is exceptional — among the deepest order books in the category.
Last 24 hours alone saw $9K 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 12 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.
Explore more prediction market odds and trading opportunities on PolyGram: