Resolution criteria on PolyGram: This market refers to the tennis match between Rina Saigo and Sonja Zhiyenbayeva in the ITF Women Wuning, originally scheduled for June 5, 2026 at 12:15AM ET. This market will resolve to 'Rina Saigo' if Rina Saigo advances against Sonja Zhiyenbayeva. This market will resolve to 'Sonja Zhiyenbayeva' if Sonja Zhiyenbayeva advances against Rina Saigo. 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 Wuning: Rina Saigo vs Sonja Zhiyenbayeva | 50% YES | 50% NO |
| Completed Match | 50% YES | 50% NO |
Rina Saigo and Sonja Zhiyenbayeva are scheduled to contest a women's ITF match in Wuning on 5 June 2026. The current order book on Polymarket reflects a 50-50 split, indicating traders see minimal edge between the two competitors at present. The settlement window closes on 12 June, allowing a seven-day buffer for fixture delays or rescheduling before the market defaults to a 50-50 resolution.
Both players operate primarily on the ITF Women's circuit, where ranking volatility and match outcomes depend heavily on surface preference, recent form, and head-to-head records. Comparable ITF fixtures at this level typically see probability shifts of 10–20 percentage points once seeding information and recent tournament results become public. The current even split suggests limited historical data or recent performance differentials available to the market; once qualifying draws are published or recent match results from either player emerge, the probability should move materially.
Traders should monitor ITF tournament announcements for seeding confirmation and any schedule changes. Surface conditions at the Wuning venue—typically hard court—will influence tactical matchups. Recent results from either player's preceding tournaments, injury reports, or withdrawal announcements would serve as primary catalysts. The seven-day settlement buffer reduces the risk of default resolution, but fixture cancellations or weather delays remain possible in early June, particularly in regions subject to seasonal conditions.
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 Wuning: Rina Saigo vs Sonja Zhiyenbayeva" 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.
$0 in lifetime turnover and $11 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 12 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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