TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 7, 12:55 PM EST
Polymarket
This market tracks whether Iga Swiatek will advance against Qinwen Zheng in their US Open WTA match, originally scheduled for September 6, 2026 at 11:00AM ET. Currently, Polymarket gives a 100.0% probability to “Swiatek vs. Zheng: Match O/U 22.5”. The resolution source for this market is the official WTA Tennis scores website at https://www.wtatennis.com/scores. Keep an eye on the match start time of September 6, 2026, as the outcome will be determined by whether Iga Swiatek advances against Qinwen Zheng in that scheduled fixture.
This market refers to the tennis match between Iga Swiatek and Qinwen Zheng in the US Open WTA, originally scheduled for September 6, 2026 at 11:00AM ET. This market will resolve to 'Iga Swiatek' if Iga Swiatek advances against Qinwen Zheng. This market will resolve to 'Qinwen Zheng' if Qinwen Zheng advances against Iga Swiatek. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 20, 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 offering a different perspective than traditional sportsbooks. Sportsbooks set their lines based on statistical models and expert analysis, while this market is driven by individuals willing to put their capital behind their beliefs. It's common to see discrepancies between the two, particularly before significant events or when there's considerable uncertainty surrounding the outcome. These differences can present opportunities for arbitrage or simply highlight varying assessments of the players’ chances.
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 implied probability of that outcome occurring. As more traders buy shares in a particular outcome, its 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 reflects the aggregated sentiment of all participants, creating a dynamic and real-time assessment of the match's potential result. This differs from fixed-odds betting, where odds are set by a bookmaker.
This market resolves around Sep 13, 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 US Open match between Iga Swiatek and Qinwen Zheng. The platform will verify the winner based on publicly available sources, such as the official WTA website or reputable sports news outlets. The market will then settle, distributing payouts to those who correctly predicted the outcome.
Several factors could influence the trading activity in this market. Any news regarding player injuries, changes in playing conditions, or significant performance updates in preceding matches could shift trader sentiment. Unexpected upsets in other matches within the tournament could also impact perceptions of player form and confidence. Furthermore, expert analysis and public opinion expressed through media coverage might sway traders’ beliefs, leading to fluctuations in the price of shares. Major momentum shifts during the match itself, even before its conclusion, could also cause movement.