Resolution criteria on PolyGram: This market refers to the tennis match between Elena Ruxandra Bertea and Lisa Zaar in the ITF Women Kursumlijska Banja, originally scheduled for May 29, 2026 at 4:00AM ET. This market will resolve to 'Elena Ruxandra Bertea' if Elena Ruxandra Bertea advances against Lisa Zaar. This market will resolve to 'Lisa Zaar' if Lisa Zaar advances against Elena Ruxandra Bertea. 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 Kursumlijska Banja: Elena Ruxandra Bertea vs Lisa Zaar | 0% YES | 100% NO |
| Completed Match | 100% YES | 0% NO |
Elena Ruxandra Bertea, a Romanian ITF competitor, faces Lisa Zaar in the ITF Women's tournament at Kursumlijska Banja, Serbia, scheduled for 29 May 2026. The match is set for 4:00 AM ET, with settlement occurring by 5 June 2026. The 0% implied probability on Polymarket's order book reflects minimal trading activity or a decisive skew towards Zaar among current participants, though such extreme probabilities often indicate thin liquidity rather than certainty.
Bertea and Zaar operate at the lower-tier professional circuit, where match outcomes depend heavily on current form, injury status, and surface adaptation rather than historical head-to-head records. ITF tournaments at this level show high volatility; unseeded or lower-ranked players frequently upset expectations, particularly in early-round matches. The Serbian clay court surface favours baseline consistency, which may advantage either player depending on their recent preparation and match sharpness.
Key variables for traders include confirmation of both players' participation as the tournament approaches, any last-minute withdrawals or scheduling changes common to ITF events, and surface conditions in Kursumlijska Banja during late May. Recent ITF results for both competitors—available through WTA databases and ITF official records—would clarify current form. The settlement window's 7-day extension clause matters; delays beyond that trigger a 50-50 resolution, creating tail-risk exposure for those holding positions into early June.
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 Kursumlijska Banja: Elena Ruxandra Bertea vs Lisa Zaar" 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.
$13K 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 5 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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