TOTAL VOLUME:
$154.8b
24H VOL:
$277,138,640
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,905,404,943
412,077
Markets across
39,838
events
MATCHED EVENTS:
4,526
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 17, 5:16 PM EST
Polymarket
This market refers to the tennis match between Mimi Xu and Ariana Arseneault in the W50 Quebec City, Main Draw, originally scheduled for October 17, 2026 at 12:00PM ET. This market will resolve to 'Mimi Xu' if Mimi Xu advances against Ariana Arseneault. This market will resolve to 'Ariana Arseneault' if Ariana Arseneault advances against Mimi Xu. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 31, 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 Mimi Xu and Ariana Arseneault in the W50 Quebec City, Main Draw, originally scheduled for October 17, 2026 at 12:00PM ET. This market will resolve to 'Mimi Xu' if Mimi Xu advances against Ariana Arseneault. This market will resolve to 'Ariana Arseneault' if Ariana Arseneault advances against Mimi Xu. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 31, 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.
Prediction market odds often reflect the collective wisdom of a diverse group of traders, potentially differing from sportsbook odds which are set by professional oddsmakers. Sportsbooks may incorporate factors like public betting percentages and risk management into their lines, while this market relies on individuals forecasting the outcome. It’s common to see discrepancies, especially early in the market's lifecycle, as prediction markets can quickly adjust to new information and differing viewpoints. Comparing this market to sportsbook odds can reveal where the crowd and the professionals disagree on the likely result.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the probability 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 fluctuates, reflecting the evolving consensus. The market’s price is determined solely by supply and demand for these shares, with traders incentivized to provide accurate predictions. This dynamic process aims to create a highly informative and liquid market.
This market resolves around Oct 24, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the W50 Quebec City tennis match between Mimi Xu and Ariana Arseneault. The platform will rely on widely available and trusted sources to determine the winner of the match. The outcome will be determined by the official tournament results, ensuring a transparent and verifiable resolution process. Traders will then be able to claim their winnings or adjust their strategies for future events.
Several factors could influence the price of this market leading up to Oct 24, 2026. News regarding player form, such as injuries or recent match results, would likely cause significant shifts. Unexpected weather conditions in Quebec City, if they impact playing conditions, could also move the market. Any updates on the players’ head-to-head record or changes in their coaching staff might also be considered by traders. Ultimately, any information that alters the perceived probability of either player winning will likely be reflected in the market price.