Resolution criteria on PolyGram: This market refers to the tennis match between Edoardo Zanada and Filippo Callerio in the ITF Men Kursumlijska Banja, originally scheduled for May 27, 2026 at 6:00AM ET. This market will resolve to 'Edoardo Zanada' if Edoardo Zanada advances against Filippo Callerio. This market will resolve to 'Filippo Callerio' if Filippo Callerio advances against Edoardo Zanada. 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 Kursumlijska Banja: Edoardo Zanada vs Filippo Callerio | 100% YES | 0% NO |
| Completed Match | 100% YES | 0% NO |
Edoardo Zanada and Filippo Callerio are scheduled to meet in the ITF Men's Kursumlijska Banja tournament on 27 May 2026. The current order book on Polymarket reflects a 100% implied probability for Zanada's advancement, suggesting either substantial backing for the Italian or minimal liquidity at present price levels. This extreme probability typically emerges in lower-tier ITF matches where trading volume remains thin and early backers establish positions before broader market participation.
ITF Futures events at the Kursumlijska Banja venue—a Challenger-level tournament in Serbia—historically attract modest trading interest given the lower profile of competitors relative to ATP or Grand Slam fixtures. Zanada, an Italian player, and Callerio, also Italian, represent a domestic matchup that may lack the cross-border betting appeal of higher-ranked encounters. The 100% reading on Polymarket's order book likely reflects incomplete price discovery rather than certainty; similar ITF matches have shifted materially once additional traders enter the market or news regarding player fitness emerges.
Traders should monitor tournament draw confirmations and any late withdrawals through the ITF's official schedule. Player injury announcements or late scratches—common in lower-tier events—could trigger settlement complications. The settlement window closes 3 June 2026, providing a seven-day buffer beyond the scheduled date. Surface conditions at the Serbian venue and recent form data for both players remain relevant catalysts, though such information rarely circulates widely for ITF-level fixtures.
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 Kursumlijska Banja: Edoardo Zanada vs Filippo Callerio" 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.
$18 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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