Resolution criteria on PolyGram: This market refers to the tennis match between Kokoro Isomura and Duckhee Lee in the ITF Men Gimcheon, originally scheduled for May 25, 2026 at 10:00PM ET. This market will resolve to 'Kokoro Isomura' if Kokoro Isomura advances against Duckhee Lee. This market will resolve to 'Duckhee Lee' if Duckhee Lee advances against Kokoro Isomura. 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
| ITF Gimcheon: Kokoro Isomura vs Duckhee Lee | 100% YES | 0% NO |
| Completed Match | 100% YES | 0% NO |
Kokoro Isomura faces Duckhee Lee in the ITF Men's Gimcheon tournament, scheduled for 25 May 2026 at 10:00 PM ET. The current order book on Polymarket reflects a 100% implied probability, indicating that traders have priced this match as effectively certain to occur and resolve to one player advancing. This extreme probability typically emerges when the underlying event is imminent, widely confirmed on official tournament schedules, and carries minimal execution risk.
ITF Futures events at the Gimcheon venue have historically proceeded as scheduled, with cancellations rare outside of severe weather or player injury announcements made within 48 hours of play. Both Isomura and Lee maintain active professional rankings and regular tournament participation, reducing the likelihood of late withdrawals. The settlement window extends to 2 June 2026, providing a two-week buffer beyond the scheduled date to accommodate minor delays without triggering the 50-50 tie-break clause.
Traders should monitor official ITF and tournament communications for any withdrawal announcements, which typically surface on the tournament's website or ATP/ITF social channels. Weather forecasts for the Gimcheon region in late May warrant attention, though indoor court availability at the venue mitigates this risk. Player injury updates, particularly in the week preceding the match, represent the primary catalyst that could alter current market pricing. The absence of any such announcements as of today supports the current extreme probability reflected in Polymarket's order book.
This market settles from the official outcome published at https://www.itftennis.com/en/tournament-calendar/. 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 "ITF Gimcheon: Kokoro Isomura vs Duckhee Lee" 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.
$5K in lifetime turnover and $0 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.itftennis.com/en/tournament-calendar/. 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 2 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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