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24H VOL:
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OPEN INTEREST:
$1,440,096,988
406,065
Markets across
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events
MATCHED EVENTS:
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PLATFORM COVERAGE:
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Polymarket:
39%
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61%
Closed: Sep 5, 1:07 PM EST
Polymarket
This market tracks whether there will be over or under 8.5 games played in the second set of the Madison Keys versus Qinwen Zheng match at the US Open WTA tournament. Currently, Polymarket gives a 99.6% probability to the “Keys vs. Zheng: Set 2 Games O/U 8.5” outcome. Resolution will be based on the official scores reported at https://www.wtatennis.com/scores. Keep an eye on the match itself, originally scheduled for September 4, 2026 at 11:00AM ET, as the outcome will be determined by the number of games played in the second set during that fixture.
This market refers to the tennis match between Madison Keys and Qinwen Zheng in the US Open WTA, originally scheduled for September 4, 2026 at 11:00AM ET. This market will resolve to 'Madison Keys' if Madison Keys advances against Qinwen Zheng. This market will resolve to 'Qinwen Zheng' if Qinwen Zheng advances against Madison Keys. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 18, 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 informed traders, and can sometimes diverge from traditional sportsbook odds. Sportsbooks set lines to balance action and ensure profit, while this market relies on individuals wagering their own capital based on their analysis. If a significant number of traders believe a sportsbook is mispricing the probability of a particular outcome in the Keys vs Zheng match, they can express that view by trading on Polymarket, potentially causing the odds to move in a different direction than those offered by sportsbooks. This dynamic creates an interesting comparison point for those following the event.
This market resolves around Sep 11, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the WTA match between Madison Keys and Qinwen Zheng, as reported by a recognized tennis authority. The platform will verify the result against established sources to determine which outcome is the winner. Traders who correctly predicted the outcome will be paid out according to the final market price at the time of resolution.
Several factors could influence trading activity and move this market before resolution. Any news regarding player injuries, changes in playing conditions, or significant shifts in expert analysis could impact trader sentiment. Unexpected results in other matches involving these players, or even broader trends in the tournament, could also play a role. Furthermore, large trades by influential market participants could cause noticeable price movements. Monitoring these signals will be key to understanding how this market evolves leading up to Sep 11, 2026.