TOTAL VOLUME:
$154.4b
24H VOL:
$290,393,159
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,944,100,805
420,493
Markets across
40,511
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 22, 12:38 AM EST
Polymarket
This market refers to the tennis match between Ann Li and Zeynep Sonmez in the Japan Women's Open, originally scheduled for October 21, 2026 at 9:00PM ET. This market will resolve to 'Ann Li' if Ann Li advances against Zeynep Sonmez. This market will resolve to 'Zeynep Sonmez' if Zeynep Sonmez advances against Ann Li. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 4, 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 WTA Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Ann Li and Zeynep Sonmez in the Japan Women's Open, originally scheduled for October 21, 2026 at 9:00PM ET. This market will resolve to 'Ann Li' if Ann Li advances against Zeynep Sonmez. This market will resolve to 'Zeynep Sonmez' if Zeynep Sonmez advances against Ann Li. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 4, 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 WTA Tour. 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 traditional sportsbook odds. Sportsbooks set lines based on their own models and aim to balance action on both sides, while this market allows anyone to express their belief about the outcome. Discrepancies can arise due to differing information, biases, or simply varying interpretations of the players' form and potential. It's common to see prediction markets move independently of sportsbook lines, especially as new information becomes available before the match.
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. As more traders participate and new information emerges, the price fluctuates, providing a dynamic assessment of the match's potential result. The current price reflects the aggregated predictions of all traders on the platform, offering a unique perspective compared to traditional betting odds.
This market resolves around Oct 29, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Japan Women's Open match between Ann Li and Zeynep Sonmez, as declared by the tournament organizers. The market will determine which player ultimately won the match, based on the official scoreline. Traders will then be able to claim their winnings or adjust their positions based on the verified result.
Several factors could influence this market leading up to the match. Any news regarding player injuries, changes in playing conditions, or updates on their recent performance would likely cause price movement. Unexpected weather forecasts impacting the match schedule could also shift predictions. Furthermore, significant betting activity or large trades on Polymarket could indicate changing sentiment and drive price fluctuations. Public commentary from tennis analysts or experts offering strong opinions on the players' chances could also contribute to shifts in this market.