Resolution criteria on PolyGram: This market refers to the tennis match between Toufik Sahtali and Joao Silva in the ITF Men Monastir, originally scheduled for May 27, 2026 at 8:15AM ET. This market will resolve to 'Toufik Sahtali' if Toufik Sahtali advances against Joao Silva. This market will resolve to 'Joao Silva' if Joao Silva advances against Toufik Sahtali. 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 Monastir: Toufik Sahtali vs Joao Silva | 100% YES | 0% NO |
| Completed Match | 100% YES | 0% NO |
Toufik Sahtali and Joao Silva are scheduled to contest a men's ITF match in Monastir on 27 May 2026 at 08:15 ET. The market currently reflects a 100% implied probability for Sahtali's advancement, suggesting either overwhelming confidence in his form relative to Silva or a thin order book on Polymarket where early positioning has not yet attracted contrarian depth. Settlement occurs 7 June 2026, allowing a week beyond the scheduled date for completion; matches delayed beyond that window without a winner resolve to 50-50.
ITF Men's circuit matches at this level typically see significant probability shifts once draw confirmation and recent form data become available. Comparable lower-tier professional tennis markets often trade at extreme probabilities (80%+) when one player holds a substantial ranking advantage or recent tournament record, though these frequently compress as match day approaches and uncertainty around surface conditions, injury status, or head-to-head records surfaces. The current 100% reading suggests minimal trading activity or consensus among early participants.
Traders should monitor ITF Monastir's official draw confirmation and any player withdrawal announcements in the fortnight before the match. Recent injury reports, qualifying results, or surface-specific performance data for both players could shift the order book materially. Polymarket's order book depth will determine whether the current extreme probability reflects genuine edge or simply illiquidity; meaningful counter-positions would likely emerge if either player's recent form or fitness status changes materially.
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 Monastir: Toufik Sahtali vs Joao Silva" 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.
$69 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 3 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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