Resolution criteria on PolyGram: This market refers to the tennis match between Eva Vedder and Kayla Day in the ITF Women Tauste-Zaragoza, originally scheduled for May 28, 2026 at 4:30AM ET. This market will resolve to 'Eva Vedder' if Eva Vedder advances against Kayla Day. This market will resolve to 'Kayla Day' if Kayla Day advances against Eva Vedder. 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 Tauste-Zaragoza: Eva Vedder vs Kayla Day | 0% YES | 100% NO |
| Completed Match | 100% YES | 0% NO |
Eva Vedder and Kayla Day are scheduled to compete in the ITF Women's circuit event at Tauste-Zaragoza on 28 May 2026. The match is set for 4:30 AM ET, forming part of the lower-tier professional tennis calendar where both players typically compete. The current Polymarket order book reflects a 0% implied probability for Vedder's advancement, indicating that traders are pricing Day as the overwhelming favourite or that liquidity remains extremely thin at current levels.
ITF Women's matches at this tier show high volatility in outcomes relative to seeding or ranking expectations, particularly when players are early in their seasons or managing injury recovery. Historical resolution patterns for similar low-liquidity tennis markets often show that extreme probabilities (near 0% or 100%) frequently shift once trading activity increases closer to match day. The settlement window extends to 4 June 2026, allowing seven days beyond the scheduled date for completion; matches delayed beyond this window without a winner resolve to 50-50, a structural feature that can influence late-stage trading behaviour.
Traders should monitor ITF tournament schedules and any player withdrawal announcements in the week preceding 28 May, as surface conditions and weather at Spanish clay courts can affect match timing. Recent ITF results and player form sheets published by the WTA Insider or ITF official channels typically emerge 48 hours before play. Retirement clauses mean that if either player withdraws after the match begins, the advancing player takes the market—a distinction worth tracking given the early morning scheduling, which occasionally correlates with late withdrawals.
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: Eva Vedder 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.
$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 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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