Resolution criteria on PolyGram: This market refers to the tennis match between Devin Badenhorst and Eliakim Coulibaly in the Centurion 2, originally scheduled for June 3, 2026 at 4:00AM ET. This market will resolve to 'Devin Badenhorst' if Devin Badenhorst advances against Eliakim Coulibaly. This market will resolve to 'Eliakim Coulibaly' if Eliakim Coulibaly advances against Devin Badenhorst. 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
| Centurion 2: Devin Badenhorst vs Eliakim Coulibaly | 39% YES | 62% NO |
| Completed Match | 50% YES | 50% NO |
| Centurion 2: Devin Badenhorst vs Eliakim Coulibaly Match O/U 21.5 | 52% YES | 49% NO |
| Centurion 2: Devin Badenhorst vs Eliakim Coulibaly Set 1 O/U 9.5 | 50% YES | 50% NO |
| Centurion 2: Devin Badenhorst vs Eliakim Coulibaly Match O/U 22.5 | 50% YES | 50% NO |
| Centurion 2: Devin Badenhorst vs Eliakim Coulibaly Set 1 O/U 10.5 | 50% YES | 50% NO |
| Centurion 2: Devin Badenhorst vs Eliakim Coulibaly Match O/U 23.5 | 50% YES | 50% NO |
| Centurion 2: Devin Badenhorst vs Eliakim Coulibaly Total Sets: O/U 2.5 | 50% YES | 50% NO |
Devin Badenhorst and Eliakim Coulibaly are scheduled to meet in the Centurion 2 tennis tournament on 3 June 2026. The current order book on Polymarket prices Badenhorst's advancement at 40 per cent, implying Coulibaly is favoured at 60 per cent. This probability reflects real-time trading activity amongst participants assessing the matchup across the platform's liquidity pools.
Both players operate within the lower-ranked professional circuit, where form variance and surface preference create significant uncertainty in head-to-head outcomes. Historical data on their direct record, recent ATP or Challenger results, and performance on the specific court surface at Centurion 2 will be critical reference points for traders calibrating the current 40 per cent valuation. Comparable matches between players of similar ranking typically see probabilities shift materially once recent tournament results or injury reports surface.
Key catalysts include official confirmation of the match proceeding as scheduled, any withdrawal announcements from either player, and weather conditions affecting the 4:00 AM ET start time. The settlement window extends to 10 June, providing a seven-day buffer for delays; matches cancelled outright or postponed beyond that window resolve to 50-50, creating a tail risk that traders should monitor. Tournament organisers' statements regarding court availability and player fitness in the days immediately preceding 3 June will likely drive order book repricing.
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 "Centurion 2: Devin Badenhorst vs Eliakim Coulibaly" are the same as any other PolyGram sporting 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.
$2 in lifetime turnover and $2K of resting liquidity puts this market in the below the median by volume for sports contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.
Last 24 hours alone saw $2 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.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 10 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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