Resolution criteria on PolyGram: This market refers to the tennis match between Matteo Martineau and Sydney Zick in the ITF Men Troisdorf, originally scheduled for May 28, 2026 at 5:00AM ET. This market will resolve to 'Matteo Martineau' if Matteo Martineau advances against Sydney Zick. This market will resolve to 'Sydney Zick' if Sydney Zick advances against Matteo Martineau. 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 Troisdorf: Matteo Martineau vs Sydney Zick | 100% YES | 0% NO |
| Completed Match | 100% YES | 0% NO |
Matteo Martineau faces Sydney Zick in an ITF Men's event at Troisdorf, Germany, originally scheduled for 28 May 2026. The match is a lower-tier professional tennis fixture on the ITF circuit, where both players compete for ranking points and prize money. The current order book on Polymarket reflects a 100% implied probability for Martineau's advancement, suggesting either substantial pre-match information favouring the French player or minimal liquidity establishing a floor price rather than genuine market consensus.
ITF matches at this level carry historical volatility in prediction markets due to limited public information on player form, recent results, and head-to-head records. Martineau, a French player ranked outside the ATP top 500, and Zick, an American competitor, have sparse recent match data available through standard tennis databases. The extreme probability reading warrants caution; such outcomes typically reflect thin order books where small trades move prices dramatically rather than confident prediction of the sporting outcome. Comparable ITF fixtures on Polymarket often see probability shifts once match-day conditions and player availability become confirmed.
Traders should monitor official ITF tournament updates and player social media for withdrawal announcements, injury disclosures, or schedule changes ahead of the 4 June settlement window. The seven-day delay clause creates a secondary resolution risk if weather or logistics postpone the fixture. Recent ITF scheduling disruptions have been documented through the ATP/WTA official channels, though Troisdorf's May timing typically avoids major European weather complications.
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 Troisdorf: Matteo Martineau vs Sydney Zick" 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.
$537 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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