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 31, 3:35 PM EST
Polymarket
This market refers to the tennis match between Reese Brantmeier and Kajsa Rinaldo Persson in the W75 Toronto, Main Draw, originally scheduled for October 31, 2026 at 11:00AM ET. This market will resolve to 'Reese Brantmeier' if Reese Brantmeier advances against Kajsa Rinaldo Persson. This market will resolve to 'Kajsa Rinaldo Persson' if Kajsa Rinaldo Persson advances against Reese Brantmeier. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 14, 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 Reese Brantmeier and Kajsa Rinaldo Persson in the W75 Toronto, Main Draw, originally scheduled for October 31, 2026 at 11:00AM ET. This market will resolve to 'Reese Brantmeier' if Reese Brantmeier advances against Kajsa Rinaldo Persson. This market will resolve to 'Kajsa Rinaldo Persson' if Kajsa Rinaldo Persson advances against Reese Brantmeier. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 14, 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 the wisdom of the crowd, often differing from initial sportsbook offerings. Sportsbooks set lines to balance action and incorporate a profit margin, while this market allows traders to express their own independent assessments. If a significant number of traders believe a sportsbook’s odds are inaccurate, they can drive the price on Polymarket in a different direction. This can lead to prediction market odds being more accurate, particularly as the event approaches and more information becomes available. However, sportsbook odds can still provide a useful benchmark for comparison.
On Polymarket, this market is priced through a continuous auction mechanism. Traders buy and sell shares representing their belief in the probability of each outcome. As more shares are traded, the price adjusts to reflect the collective sentiment. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of a 'yes' share represents the probability of Reese Brantmeier winning, while a 'no' share represents the probability of Kajsa Rinaldo Persson winning. The closer the price is to 1, the more confident traders are in that outcome. This dynamic pricing ensures the market reflects the latest information and expectations.
This market resolves around Nov 7, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The winner of the match between Reese Brantmeier and Kajsa Rinaldo Persson, as officially declared by the tournament organizers, will determine the resolution. The platform will then verify the result against established sources to ensure accuracy. Traders holding shares in the winning outcome will receive a payout, while those holding shares in the losing outcome will forfeit their investment. The final result will be publicly available on Polymarket.
Several factors could influence trading activity in this market. Any news regarding player form, injuries, or changes to playing conditions could significantly shift the odds. For example, if Reese Brantmeier were to withdraw from the match due to injury, the price of shares representing a Kajsa Rinaldo Persson victory would likely increase. Similarly, strong performances in preceding matches or favorable head-to-head records could also impact trader sentiment. Unexpected weather conditions at the tournament location could also play a role, influencing the perceived advantage of either player.