Resolution criteria on PolyGram: This market refers to the tennis match between Calvin Hemery and Orel Kimhi in the Centurion, originally scheduled for May 27, 2026 at 4:00AM ET. This market will resolve to 'Calvin Hemery' if Calvin Hemery advances against Orel Kimhi. This market will resolve to 'Orel Kimhi' if Orel Kimhi advances against Calvin Hemery. 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. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
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: Calvin Hemery vs Orel Kimhi | 0% YES | 100% NO |
| Completed Match | 100% YES | 0% NO |
| Centurion: Calvin Hemery vs Orel Kimhi Set 1 O/U 8.5 | 100% YES | 0% NO |
| Centurion: Calvin Hemery vs Orel Kimhi Set 1 Winner | 0% YES | 100% NO |
| Centurion: Calvin Hemery vs Orel Kimhi Set 1 O/U 9.5 | 100% YES | 0% NO |
| Centurion: Calvin Hemery vs Orel Kimhi Set 1 O/U 10.5 | 100% YES | 0% NO |
| Centurion: Calvin Hemery vs Orel Kimhi Total Sets: O/U 2.5 | 0% YES | 100% NO |
| Centurion: Calvin Hemery vs Orel Kimhi Match O/U 23.5 | 0% YES | 100% NO |
Calvin Hemery and Orel Kimhi are scheduled to meet in the Centurion tournament on 27 May 2026 at 4:00 AM ET. The current order book on Polymarket reflects a 0% implied probability for Hemery's advancement, indicating that traders are pricing in either Kimhi as the heavy favourite or significant uncertainty about match execution. With settlement occurring on 3 June 2026, the market window extends roughly one week beyond the scheduled date, allowing for minor delays whilst preserving the binary outcome.
The 0% pricing for Hemery suggests traders view Kimhi as substantially stronger or that the match carries execution risk. Historical precedent shows that early-morning matches in secondary tournaments frequently encounter scheduling disruptions, weather delays, or player withdrawals—factors that would trigger the 50-50 tie resolution. Comparable lower-ranked ATP or Challenger fixtures have seen similar probability distributions when one player holds a clear ranking or recent-form advantage, though the extreme skew here warrants scrutiny of whether the market is pricing genuine form disparity or structural match risk.
Traders should monitor official Centurion tournament announcements regarding court assignments and weather forecasts in the week preceding 27 May. Recent ATP Challenger reports indicate increased fixture congestion in May 2026, raising the likelihood of rescheduling. Player injury updates or late withdrawals would be critical catalysts; either player's absence would resolve the market at 50-50 rather than determining a winner. The settlement window's seven-day buffer provides some protection against minor delays, but any major disruption beyond that threshold would similarly default to a split resolution.
Centurion Coal Mine, formerly known as North Goonyella, is an underground coal mine located near Moranbah in the Bowen Basin, Queensland, Australia. The recently reopened mine is planned to have an annual production capacity of 4.7 million tonnes of coal, with a total reserve of 140 million tonnes and a planned life of over 25 years as of 2025.
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: Calvin Hemery vs Orel Kimhi" 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.
$8K in lifetime turnover and $0 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.
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 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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