Resolution criteria on PolyGram: This market refers to the tennis match between Jennifer Ruggeri and Kayla Day in the ITF Women Tauste-Zaragoza, originally scheduled for May 31, 2026 at 5:30AM ET. This market will resolve to 'Jennifer Ruggeri' if Jennifer Ruggeri advances against Kayla Day. This market will resolve to 'Kayla Day' if Kayla Day advances against Jennifer Ruggeri. 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 Tauste-Zaragoza: Jennifer Ruggeri vs Kayla Day | 100% YES | 0% NO |
| Completed Match | 100% YES | 0% NO |
Jennifer Ruggeri and Kayla Day are scheduled to compete in the ITF Women's circuit event at Tauste-Zaragoza on 31 May 2026. The match is set for 5:30 AM ET, part of the lower-tier professional tennis calendar where both players typically compete. The current order book on Polymarket shows 100% implied probability for resolution, suggesting either overwhelming confidence in match completion or minimal trading volume establishing a genuine market price. With settlement closing 7 June 2026, there is a narrow window for the match to occur and be decided.
ITF Women's matches at this level rarely cancel outright, though weather delays and player withdrawals do occur. Historical precedent from comparable ITF events shows that matches scheduled at unsociable hours—particularly early morning slots—occasionally face rescheduling but typically proceed within the settlement window. The 31 May date falls during the European clay-court season when conditions are generally stable. Neither player commands significant media attention that would trigger advance announcements of withdrawal or injury.
The primary catalyst remains the match itself: whether both players arrive fit and willing to compete. No recent news sources report injuries or scheduling conflicts for either competitor. Traders should monitor ITF official draws and player social media in the final week before the event for any withdrawal notices. The extreme probability reading likely reflects low liquidity rather than genuine market conviction, meaning even modest new information could shift pricing substantially if either player's availability becomes uncertain.
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 Tauste-Zaragoza: Jennifer Ruggeri vs Kayla Day" 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.
$14K 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 7 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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