TOTAL VOLUME:
$154.4b
24H VOL:
$245,801,863
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,902,097,102
417,059
Markets across
40,178
events
MATCHED EVENTS:
4,415
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 20, 1:33 PM EST
Polymarket
This market refers to the tennis match between Romeo Spinolo and Andrey Chepelev in the M25 Santa Margherita di Pula, Main Draw, originally scheduled for October 20, 2026 at 7:30AM ET. This market will resolve to 'Romeo Spinolo' if Romeo Spinolo advances against Andrey Chepelev. This market will resolve to 'Andrey Chepelev' if Andrey Chepelev advances against Romeo Spinolo. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 3, 2026, 11:59 PM ET (14 days after the scheduled start), 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. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Romeo Spinolo and Andrey Chepelev in the M25 Santa Margherita di Pula, Main Draw, originally scheduled for October 20, 2026 at 7:30AM ET. This market will resolve to 'Romeo Spinolo' if Romeo Spinolo advances against Andrey Chepelev. This market will resolve to 'Andrey Chepelev' if Andrey Chepelev advances against Romeo Spinolo. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 3, 2026, 11:59 PM ET (14 days after the scheduled start), 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. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Typically, prediction market odds reflect a broader range of information and incentives than traditional sportsbook odds. Sportsbooks often set lines to balance action and incorporate a profit margin, while this market aggregates the wisdom of the crowd. If sportsbook odds significantly differ from those on Polymarket, it could indicate disagreement about the likely outcome, potentially due to differing expert opinions or access to unique information. It's common to see prediction markets outperform traditional odds, particularly when there's a strong signal from informed traders.
On Polymarket, this market is priced through a continuous auction mechanism, where traders buy and sell shares representing their belief in the likelihood of a particular outcome. The price of a share directly corresponds to the implied probability of that outcome occurring. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and express their views, the price adjusts to reflect the collective assessment. The market's efficiency relies on the active participation of informed traders and the availability of relevant information.
This market resolves around Oct 27, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official result of the M25 Santa Margherita di Pula match between Romeo Spinolo and Andrey Chepelev. Any disputes regarding the official result will be addressed using widely accepted sources for tennis match outcomes. Traders will be able to claim their winnings once the resolution is finalized on Polymarket.
Several factors could influence the price of this market before Oct 27, 2026. News regarding player injuries, changes in playing conditions, or updates on their recent performance could all shift trader sentiment. Unexpected announcements related to the match, such as changes to the schedule or venue, could also have an impact. Furthermore, any significant shifts in public opinion, as reflected in polls or expert analysis, could lead to adjustments in the market's pricing. Monitoring these signals will be key to understanding potential price movements.