TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 8, 3:57 AM EST
Polymarket
This market refers to the tennis match between Kristiana Sidorova and YeXin Ma in the W50 Guiyang, Main Draw, originally scheduled for September 7, 2026 at 11:00PM ET. This market will resolve to 'Kristiana Sidorova' if Kristiana Sidorova advances against YeXin Ma. This market will resolve to 'YeXin Ma' if YeXin Ma advances against Kristiana Sidorova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 21, 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 Kristiana Sidorova and YeXin Ma in the W50 Guiyang, Main Draw, originally scheduled for September 7, 2026 at 11:00PM ET. This market will resolve to 'Kristiana Sidorova' if Kristiana Sidorova advances against YeXin Ma. This market will resolve to 'YeXin Ma' if YeXin Ma advances against Kristiana Sidorova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 21, 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.
Often, prediction market odds reflect a different perspective than those found at traditional sportsbooks. Sportsbooks set lines to balance action and incorporate a profit margin, while this market relies on the collective wisdom of traders. If a significant discrepancy exists between prediction market probabilities and sportsbook odds, it may indicate that traders believe the sportsbook is mispricing the event. However, it’s important to remember that both represent probabilities based on different methodologies and information sources.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing different outcomes. The price of each share reflects the market's current assessment of the 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 new information becomes available, the prices adjust accordingly, providing a dynamic and real-time view of expectations for the Sidorova vs Ma match. The market's price is driven entirely by supply and demand among traders on Polymarket.
This market resolves around Sep 15, 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 Guiyang match between Kristiana Sidorova and YeXin Ma. The platform will verify the result against widely available sources to determine the winning outcome. Traders will then be able to claim their winnings based on the final result.
Several factors could influence trading activity in this market before Sep 15, 2026. News regarding player form, potential injuries to either Kristiana Sidorova or YeXin Ma, or changes in playing conditions could all shift trader sentiment. Unexpected results in other matches involving these players, or even broader trends in the W50 Guiyang tournament, might also impact the odds. Any significant information that alters the perceived probability of either player winning could lead to substantial movement in this market.