Resolution criteria on PolyGram: This market refers to the tennis match between Sanhui Shin and Naoki Tajima in the ITF Men Gimcheon, originally scheduled for May 27, 2026 at 10:00PM ET. This market will resolve to 'Sanhui Shin' if Sanhui Shin advances against Naoki Tajima. This market will resolve to 'Naoki Tajima' if Naoki Tajima advances against Sanhui Shin. 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: Sanhui Shin vs Naoki Tajima | 100% YES | 0% NO |
| Completed Match | 100% YES | 0% NO |
A men's ITF tennis match scheduled for 27 May 2026 at 10:00 PM ET in Gimcheon, South Korea will determine whether Sanhui Shin or Naoki Tajima advances in the tournament. The current order book on Polymarket reflects a 100% implied probability for resolution, indicating traders are pricing near-certainty that the match will occur and produce a decisive winner by the settlement deadline of 4 June 2026. This extreme confidence suggests minimal perceived risk of cancellation, postponement beyond the seven-day grace period, or other disruption scenarios that would trigger a 50-50 split resolution.
ITF Men's circuit matches at this level typically proceed as scheduled absent extraordinary circumstances. Historical data from comparable ITF tournaments shows completion rates exceed 95% when matches reach the published fixture list, particularly in established venues like Gimcheon. Weather disruptions in South Korea during late May are uncommon, and player withdrawals at ITF level occur in roughly 2-3% of scheduled matches. The 100% probability reflects this baseline reliability rather than certainty of outcome.
Traders should monitor the official ITF and tournament websites for any draw changes, player injury announcements, or scheduling adjustments in the fortnight before the match. Shin and Tajima's recent form and head-to-head record will influence betting within the market once play begins, but the primary resolution risk centres on match completion itself. Any announcement of withdrawal or force majeure before 27 May would materially shift the probability away from current levels.
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: Sanhui Shin vs Naoki Tajima" 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.
$4K in lifetime turnover and $0 of resting liquidity puts this market in the below the median by volume for games 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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