Resolution criteria on PolyGram: This market refers to the tennis match between Giselle Isabella Guillen and Kurea Hayasaka in the ITF Women Fukui, originally scheduled for May 27, 2026 at 12:45AM ET. This market will resolve to 'Giselle Isabella Guillen' if Giselle Isabella Guillen advances against Kurea Hayasaka. This market will resolve to 'Kurea Hayasaka' if Kurea Hayasaka advances against Giselle Isabella Guillen. 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 Fukui: Giselle Isabella Guillen vs Kurea Hayasaka | 0% YES | 100% NO |
| Completed Match | 100% YES | 0% NO |
Giselle Isabella Guillen faces Kurea Hayasaka in the ITF Women's Fukui tournament, scheduled for 27 May 2026. The current order book on Polymarket reflects a 0% implied probability for Guillen's advancement, indicating the market has priced her as a decisive underdog or that insufficient liquidity exists to establish meaningful odds. This extreme positioning warrants scrutiny, as ITF Women's events frequently feature competitive matchups between players in similar ranking bands, and such binary pricing often reflects thin order books rather than fundamental assessment.
Comparable ITF Women's matches historically show significant variance in outcomes when one player is heavily favoured. Guillen's recent form, ranking trajectory, and head-to-head record against Hayasaka—if any exists—would typically anchor probability estimates. The 0% reading suggests either a substantial gap in player quality that market participants recognise, or that traders have not yet committed capital to establish a functioning spread. ITF tournaments at this level often feature players ranked between 400–800 on the WTA scale, where upsets occur regularly.
Traders should monitor tournament draw confirmations and any player withdrawal announcements through the ITF's official schedule, which typically updates in the week preceding competition. Surface conditions at Fukui and recent match results from both players' prior tournaments will provide concrete data points. The settlement window closes 3 June 2026, allowing seven days for match completion; any delay beyond that triggers a 50-50 resolution, creating tail risk for positions held through the final days.
The 2025 ITF Fujairah Championships is a professional tennis tournament played on outdoor hard courts. It is the first edition of the tournament which is part of the 2025 ITF Women's World Tennis Tour. It took place in Fujairah, United Arab Emirates between 24 and 30 November 2025.
The 2026 ITF Fujairah Championships is a professional tennis tournament played on outdoor hard courts. It is the second edition of the tournament which is part of the 2026 ITF Women's World Tennis Tour. It took place in Fujairah, United Arab Emirates between 26 January and 1 February 2026. From this year the tournament prize money increased to $100,000 and t
The ITF Fujairah Championships is a tournament for professional female tennis players played on outdoor Hard courts. The event is classified as a $60,000 ITF Women's Circuit tournament and has been held in Fujairah, United Arab Emirates, since 2025. Since 2026 the tournament prize money increased to $100,000 and the tournament date changed to end of January.
The 2010 ITF Men's Circuit consisted of 502 'Futures' tournaments played year round, around the world.
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 Fukui: Giselle Isabella Guillen vs Kurea Hayasaka" 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.
$3K 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 3 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: