Resolution criteria on PolyGram: This market refers to the tennis match between Kokoro Isomura and Hugo Hashimoto in the ITF Men Gimcheon, originally scheduled for May 27, 2026 at 11:00PM ET. This market will resolve to 'Kokoro Isomura' if Kokoro Isomura advances against Hugo Hashimoto. This market will resolve to 'Hugo Hashimoto' if Hugo Hashimoto 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.
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 Hugo Hashimoto | 0% YES | 100% NO |
| Completed Match | 0% YES | 100% NO |
Kokoro Isomura faces Hugo Hashimoto in the ITF Men's Gimcheon tournament, scheduled for 27 May 2026. The match represents a lower-tier professional tennis fixture on the ITF circuit, where both players compete for ranking points and prize money. The current order book on Polymarket shows zero probability for Isomura's advancement, reflecting either minimal trading activity or strong conviction amongst participants that Hashimoto will prevail.
ITF Men's events typically feature players ranked outside the ATP top 200, with outcomes heavily influenced by recent form, surface preference, and head-to-head records. Isomura, a Japanese player, and Hashimoto, also Japanese, operate in a competitive tier where upsets occur regularly but are often predictable based on recent tournament results and ranking trajectories. The 0% implied probability suggests either Hashimoto holds a decisive advantage in available metrics—such as recent wins, ranking position, or surface record—or the market has simply not attracted sufficient liquidity to establish a balanced price.
Traders should monitor ITF tournament draws and player withdrawals through the ATP/ITF official websites, as late scratches are common at this level. Any announcement regarding injury, schedule conflicts, or ranking implications could shift sentiment. The settlement window extends to 4 June 2026, providing a week beyond the scheduled date for match completion. Surface conditions at the Gimcheon venue and weather forecasts closer to the date may also influence match dynamics, particularly if either player has documented preferences or recent performance patterns on clay or hard courts.
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 Hugo Hashimoto" 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.
$432 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 4 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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