Resolution criteria on PolyGram: This market refers to the tennis match between Pedro Sakamoto and Stefan Dostanic in the Kosice, originally scheduled for May 26, 2026 at 5:30AM ET. This market will resolve to 'Pedro Sakamoto' if Pedro Sakamoto advances against Stefan Dostanic. This market will resolve to 'Stefan Dostanic' if Stefan Dostanic advances against Pedro Sakamoto. 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
| Kosice: Pedro Sakamoto vs Stefan Dostanic | 0% YES | 100% NO |
| Completed Match | 100% YES | 0% NO |
| Kosice: Pedro Sakamoto vs Stefan Dostanic Set 1 Winner | 0% YES | 100% NO |
| Kosice: Pedro Sakamoto vs Stefan Dostanic Total Sets: O/U 2.5 | 0% YES | 100% NO |
| Kosice: Pedro Sakamoto vs Stefan Dostanic Match O/U 21.5 | 0% YES | 100% NO |
| Kosice: Pedro Sakamoto vs Stefan Dostanic Match O/U 22.5 | 0% YES | 100% NO |
| Kosice: Pedro Sakamoto vs Stefan Dostanic Match O/U 23.5 | 0% YES | 100% NO |
| Kosice: Pedro Sakamoto vs Stefan Dostanic Set 1 O/U 8.5 | 100% YES | 0% NO |
Pedro Sakamoto and Stefan Dostanic are scheduled to compete in a tennis match at the Kosice tournament on 26 May 2026, with settlement occurring by 2 June 2026. The 0% implied probability on Polymarket's order book reflects either minimal liquidity at present or a strong consensus positioning against Sakamoto's chances. With the match nearly five months away, the current probability formation likely stems from limited trading activity rather than substantive information about either player's form or fitness.
Both players operate at the lower tiers of professional tennis, where match outcomes are considerably less predictable than ATP top-100 fixtures. Historical precedent suggests that markets on lower-ranked players often exhibit extreme probabilities early in the settlement window, particularly when order book depth is shallow. As the match date approaches, probability typically normalises unless material information emerges about injuries, withdrawals, or significant ranking shifts. The 7-day delay clause in the resolution criteria introduces additional uncertainty, as tournament scheduling changes or player withdrawals remain common at this level.
Traders should monitor both players' recent tournament results and ATP rankings through spring 2026, as these will signal form and injury status. Any official announcements regarding the Kosice tournament draw, schedule adjustments, or player withdrawals will be critical catalysts. The current extreme probability warrants caution—it may reflect genuine information asymmetry or simply the absence of meaningful trading interest at this early stage.
The Košice Program, or Košice Government Program was a 1945 agreement between Czechoslovak Communists who had spent the war in the Soviet Union and the Czechoslovak government-in-exile, which had been based in London. They met in the city of Košice, which had already been liberated by the Red Army. The program outlined the postwar political settlement, the
This market settles from the official outcome published at https://www.atptour.com/en/scores/current. 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 "Kosice: Pedro Sakamoto vs Stefan Dostanic" 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.
$18K 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.atptour.com/en/scores/current. 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 2 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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