TOTAL VOLUME:
$154.2b
24H VOL:
$192,072,993
24H TRANSACTIONS:
2,983,476,643
OPEN INTEREST:
$1,842,388,377
408,027
Markets across
40,419
events
MATCHED EVENTS:
4,369
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 28, 1:39 PM EST
Polymarket
This market refers to the tennis match between Madison Sieg and Kisa Yoshioka in the W75 Toronto, Main Draw, originally scheduled for October 28, 2026 at 10:00AM ET. This market will resolve to 'Madison Sieg' if Madison Sieg advances against Kisa Yoshioka. This market will resolve to 'Kisa Yoshioka' if Kisa Yoshioka advances against Madison Sieg. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 11, 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 Madison Sieg and Kisa Yoshioka in the W75 Toronto, Main Draw, originally scheduled for October 28, 2026 at 10:00AM ET. This market will resolve to 'Madison Sieg' if Madison Sieg advances against Kisa Yoshioka. This market will resolve to 'Kisa Yoshioka' if Kisa Yoshioka advances against Madison Sieg. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 11, 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.
Often, prediction market odds offer a different perspective than traditional sportsbooks. Sportsbooks set lines to balance action and incorporate a profit margin, while this market reflects the collective wisdom of traders who are incentivized to accurately predict the outcome. Discrepancies can arise due to differing information, biases, or simply varying levels of confidence in a particular result. Comparing the odds can be a useful exercise for informed decision-making, potentially identifying situations where the market believes a sportsbook has mispriced the probability of an event occurring.
On Polymarket, this market is priced through a continuous trading mechanism where users buy and sell shares representing their belief in the outcome. The price of these shares directly reflects the implied probability of that outcome occurring. As more traders buy shares in a particular outcome, the price increases, and vice versa. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market's price is driven entirely by supply and demand, meaning it’s a direct expression of what traders collectively believe will happen in the Toronto tennis match. This dynamic pricing allows for real-time adjustments based on new information or changing sentiment.
This market resolves around Nov 4, 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 Toronto tennis match between Madison Sieg and Kisa Yoshioka. Specifically, the market will determine which player won the match according to official tournament records. The outcome will be determined by the official tournament results and confirmed by the platform’s process for verifying event results.
Several factors could influence the price of this market before the match concludes. Any news regarding player injuries, changes in playing conditions (like weather affecting an outdoor court), or updates on player form could all shift trader sentiment. Unexpected results in other matches involving these players could also impact confidence levels. Furthermore, large volume trades from informed individuals could cause significant price movements, reflecting new information or a change in overall market perception regarding the likely winner of the Toronto tennis match.