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 22, 7:46 AM EST
Polymarket
This market refers to the tennis match between Sahaja Yamalapalli and Katie Swan in the Porto, originally scheduled for September 22, 2026 at 6:00AM ET. This market will resolve to 'Sahaja Yamalapalli' if Sahaja Yamalapalli advances against Katie Swan. This market will resolve to 'Katie Swan' if Katie Swan advances against Sahaja Yamalapalli. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 6, 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 Sahaja Yamalapalli and Katie Swan in the Porto, originally scheduled for September 22, 2026 at 6:00AM ET. This market will resolve to 'Sahaja Yamalapalli' if Sahaja Yamalapalli advances against Katie Swan. This market will resolve to 'Katie Swan' if Katie Swan advances against Sahaja Yamalapalli. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 6, 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.
Often, prediction market odds reflect a wisdom-of-the-crowd effect, potentially differing from initial sportsbook odds. Sportsbooks set lines to balance their risk, while this market represents the collective belief of informed traders. If a significant number of people believe a sportsbook is mispricing the probability of a particular outcome in the Yamalapalli-Swan match, the prediction market may show a different probability. It’s common to see prediction markets outperform traditional odds, especially as more information becomes available and the event approaches.
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 Yamalapalli-Swan match. The price of these shares directly reflects the implied probability of that outcome. As more traders participate, the price adjusts to reflect the collective intelligence of the crowd. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price movements are driven by supply and demand, influenced by news, analysis, and any other information traders deem relevant to the event.
This market resolves around Sep 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 Yamalapalli-Swan match as reported by recognized sports authorities. The platform will verify the result against these sources to determine which outcome is the winner. Traders who correctly predicted the outcome will be paid out according to the final market prices at the time of resolution, while those who predicted incorrectly will forfeit their shares.
Several factors could influence the price of this market before the Yamalapalli-Swan match takes place. Any news regarding player injuries, changes in playing conditions, or significant shifts in player form could all cause traders to reassess their probabilities. Unexpected announcements about team strategies or even weather forecasts impacting the match could also lead to price movements. The closer we get to Sep 29, 2026, the more sensitive the market will likely be to new information and developments surrounding the players and the event.