Resolution criteria on PolyGram: This market refers to the tennis match between Joao Vitor Scramin Do Lago and Pedro Petroski Rocha in the ITF Men Maringa, originally scheduled for May 13, 2026 at 3:15PM ET. This market will resolve to 'Joao Vitor Scramin Do Lago' if Joao Vitor Scramin Do Lago advances against Pedro Petroski Rocha. This market will resolve to 'Pedro Petroski Rocha' if Pedro Petroski Rocha advances against Joao Vitor Scramin Do Lago. 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 Maringa: Joao Vitor Scramin Do Lago vs Pedro Petroski Rocha | 100% YES | 0% NO |
| Completed Match | 50% YES | 51% NO |
The ITF Men's Maringa tournament will feature a first-round match between Brazilian players Joao Vitor Scramin Do Lago and Pedro Petroski Rocha, originally scheduled for 13 May 2026. The current order book on Polymarket reflects a 100% implied probability for Scramin Do Lago's advancement, suggesting the market has priced in a decisive outcome or significant information asymmetry regarding the matchup. This extreme probability warrants scrutiny, as ITF-level tennis matches—particularly between players of comparable ranking—typically exhibit greater uncertainty in prediction markets.
Comparable ITF Men's matches at this level historically settle with winner probabilities ranging from 55% to 75%, depending on ranking differential and recent form. The 100% pricing here suggests either substantial ranking or performance data favouring Scramin Do Lago, or alternatively, limited liquidity and early-market positioning. Without access to current ATP rankings or recent head-to-head records between these specific players, traders should verify whether this probability reflects genuine competitive disparity or market inefficiency.
Key catalysts include confirmation of both players' participation and fitness status as the May 13 date approaches. Tournament scheduling changes, injury announcements, or withdrawal notices could trigger market repricing. The settlement window extends to 20 May, allowing seven days beyond the scheduled date for match completion. Traders should monitor ITF tournament updates and Brazilian tennis news sources for any developments affecting player availability or match logistics in the weeks preceding the event.
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 Maringa: Joao Vitor Scramin Do Lago vs Pedro Petroski Rocha" 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.
$10 in lifetime turnover and $40K of resting liquidity puts this market in the below the median by volume for tennis contracts on PolyGram. Order-book depth is strong — order books support five-figure trades with single-cent slippage.
Last 24 hours alone saw $10 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 20 May 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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