Resolution criteria on PolyGram: This market refers to the tennis match between Ivan Marrero Curbelo and Bora Sengul in the ITF Men Kayseri, originally scheduled for June 5, 2026 at 3:00AM ET. This market will resolve to 'Ivan Marrero Curbelo' if Ivan Marrero Curbelo advances against Bora Sengul. This market will resolve to 'Bora Sengul' if Bora Sengul advances against Ivan Marrero Curbelo. 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 Kayseri: Ivan Marrero Curbelo vs Bora Sengul | 94% YES | 7% NO |
| Completed Match | 50% YES | 50% NO |
Ivan Marrero Curbelo, a Spanish ITF competitor, faces Turkey's Bora Sengul in the Men's Kayseri tournament on 5 June 2026. The 92% implied probability on Polymarket's order book reflects substantial confidence in Marrero Curbelo's advancement, with the current pricing suggesting market participants view him as a clear favourite. This probability has formed through trading activity on the platform, where the spread between bid and ask prices consolidates around this level.
Marrero Curbelo's ranking and recent ITF form provide the foundation for this assessment. Spanish players competing in ITF Kayseri events have historically shown competitive strength at this tier, particularly against Turkish opponents in comparable matchups. Sengul's recent results and seeding position relative to Marrero Curbelo would typically determine whether the 92% mark reflects genuine dominance or contains mispricing. The eight-point gap between the scheduled match date and the settlement window's closure on 12 June allows for standard tournament progression without triggering the 50-50 tie-break clause.
Traders should monitor official ITF tournament draws and any withdrawal announcements in the days preceding the match. Weather conditions in Kayseri during early June occasionally affect scheduling, though the 3:00 AM ET start time suggests an indoor venue. Court surface preference data—whether Marrero Curbelo performs notably better or worse on the specific surface used—represents a material catalyst that could shift the order book if new information emerges. Tournament seeding confirmation and head-to-head records, if available through ITF databases, would validate whether current pricing appropriately reflects the matchup fundamentals.
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: Ivan Marrero Curbelo vs Bora Sengul" 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.
$4K in lifetime turnover and $17K of resting liquidity puts this market in the below the median by volume for tennis contracts on PolyGram. Order-book depth is modest — expect a couple of cents of slippage on $1k+ trades.
Last 24 hours alone saw $4K in turnover, well above the lifetime daily-average for this market — a clear sign of news catalysing trader activity right now.
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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