TOTAL VOLUME:
$134b
24H VOL:
$87,176,691
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,391,958,194
394,660
Markets across
30,119
events
MATCHED EVENTS:
2,626
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 11, 7:54 AM EST
Polymarket
This market refers to the tennis match between Robin Bertrand and Mark Lajal in the Cassis, originally scheduled for September 11, 2026 at 6:00AM ET. This market will resolve to 'Robin Bertrand' if Robin Bertrand advances against Mark Lajal. This market will resolve to 'Mark Lajal' if Mark Lajal advances against Robin Bertrand. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 25, 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 ATP Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Robin Bertrand and Mark Lajal in the Cassis, originally scheduled for September 11, 2026 at 6:00AM ET. This market will resolve to 'Robin Bertrand' if Robin Bertrand advances against Mark Lajal. This market will resolve to 'Mark Lajal' if Mark Lajal advances against Robin Bertrand. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 25, 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 ATP Tour. A consensus of credible reporting may also be used.
Prediction market odds often reflect a different kind of wisdom than those found at sportsbooks. Sportsbooks set lines to balance action and incorporate a profit margin, while this market represents the aggregated beliefs of informed traders. Often, prediction markets can be more accurate forecasts, particularly when there’s significant public interest and available information. However, sportsbook odds can sometimes offer value, especially if they diverge substantially from the probabilities implied by this market. It’s always wise to compare both to form a well-rounded view.
On Polymarket, this market is priced through a continuous auction mechanism, where traders buy and sell shares representing their belief in the outcome. The price of a share directly corresponds to the probability of that outcome occurring, as perceived by the market participants. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more traders believe an outcome is likely, the higher the share price will rise, and vice versa. This dynamic pricing ensures that the market reflects the most up-to-date information and collective intelligence regarding the Cassis tennis match.
This market resolves around Sep 18, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Cassis tennis match between Robin Bertrand and Mark Lajal, as reported by a recognized tennis authority. The platform will verify the result against publicly available data to determine which player emerged victorious and settle the market accordingly. Traders who correctly predicted the winner will receive a payout based on the final share price.
Several factors could influence the price of shares in this market before the match concludes. Any news regarding player injuries, changes in playing conditions, or even updated analysis from tennis experts could shift trader sentiment. Unexpected developments during the match itself, such as a dominant performance by one player or a controversial call by the umpire, would likely cause significant price fluctuations. Monitoring these signals and staying informed about the event is crucial for those looking to trade in this market.