Resolution criteria on PolyGram: This market refers to the tennis match between Mariia Bergen and Selina Atay in the ITF Women Kayseri, originally scheduled for May 28, 2026 at 4:00AM ET. This market will resolve to 'Mariia Bergen' if Mariia Bergen advances against Selina Atay. This market will resolve to 'Selina Atay' if Selina Atay advances against Mariia Bergen. 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
| Completed Match | 100% YES | 0% NO |
| ITF Kayseri: Mariia Bergen vs Selina Atay | 0% YES | 100% NO |
Mariia Bergen and Selina Atay are scheduled to compete in the ITF Women's circuit event at Kayseri on 28 May 2026. The match is set for 4:00 AM ET, with settlement occurring by 4 June 2026. The current orderbook on Polymarket reflects a 100% implied probability for Bergen's advancement, suggesting either strong conviction in her form relative to Atay or minimal liquidity establishing a floor price rather than genuine market consensus.
ITF Women's matches at this tier show high completion rates, though upsets remain common given the developmental nature of the circuit. Bergen's recent trajectory and seeding relative to Atay would typically anchor expectations, but the extreme probability reading warrants scrutiny—such pricing often emerges when one player carries significantly higher ranking or recent tournament results. Historical ITF Kayseri events have proceeded as scheduled, reducing the likelihood of cancellation or extended delay that would trigger the 50-50 resolution clause.
Traders should monitor official ITF and tournament communications for any withdrawal announcements, injury disclosures, or schedule changes in the week preceding the match. Weather disruptions are possible given the late May timing in Turkey, though indoor facilities at Kayseri typically mitigate this risk. Any shift in either player's tournament participation or fitness status would likely move the orderbook substantially from its current extreme position, creating arbitrage opportunities for those tracking player updates through official tour channels and social media.
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 Kayseri: Mariia Bergen vs Selina Atay" 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.
$1K 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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