TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 3, 12:57 PM EST
Polymarket
This market refers to the doubles tennis match between Kozyreva/Ninomiya and Kempen/Panova in the US Open WTA, originally scheduled for September 3, 2026 at 11:00AM ET. This market will resolve to 'Kozyreva/Ninomiya' if the team of Kozyreva/Ninomiya advances against Kempen/Panova. This market will resolve to 'Kempen/Panova' if the team of Kempen/Panova advances against Kozyreva/Ninomiya. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 17, 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 doubles tennis match between Kozyreva/Ninomiya and Kempen/Panova in the US Open WTA, originally scheduled for September 3, 2026 at 11:00AM ET. This market will resolve to 'Kozyreva/Ninomiya' if the team of Kozyreva/Ninomiya advances against Kempen/Panova. This market will resolve to 'Kempen/Panova' if the team of Kempen/Panova advances against Kozyreva/Ninomiya. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 17, 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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.
Typically, prediction market odds reflect the wisdom of the crowd, often differing from initial sportsbook offerings. Sportsbooks set lines based on their own models and need to account for profit margins, while this market is driven purely by traders' beliefs about the likelihood of each outcome. If a significant number of traders believe a sportsbook has mispriced an outcome, the odds on Polymarket will adjust accordingly. It’s common to see prediction markets more accurately forecast probabilities as more information becomes available and trading volume increases, potentially offering a different perspective than traditional betting venues.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome of the Kozyreva/Ninomiya versus Kempen/Panova match. The price of these shares fluctuates based on supply and demand, effectively creating a real-time probability assessment. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more shares purchased for a particular outcome, the higher its price rises, indicating increased confidence in that result. This dynamic pricing allows the market to quickly incorporate new information and adjust expectations as the event approaches.
This market resolves around Sep 10, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the US Open women's doubles match between Kozyreva/Ninomiya and Kempen/Panova. The platform will verify the result against official tournament data to determine which team emerged victorious. Traders holding shares in the winning outcome will be entitled to a payout, while those holding shares in the losing outcome will forfeit their investment.
Several factors could influence trading activity and shift the odds in this market. Any news regarding player injuries, changes in playing conditions, or even strategic adjustments announced by either team could prompt traders to reassess their predictions. Unexpected performance in preceding matches or strong commentary from tennis analysts could also sway sentiment. Increased trading volume, particularly concentrated on one outcome, would be a key signal to watch, as it suggests a growing conviction among traders about the likely winner of the Kozyreva/Ninomiya versus Kempen/Panova match.