TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 18, 11:54 AM EST
Polymarket
This market refers to the tennis match between Jennifer Rosa Dourado and Josefina Estevez in the W15 Sao Luis, Main Draw, originally scheduled for September 18, 2026 at 9:30AM ET. This market will resolve to 'Jennifer Rosa Dourado' if Jennifer Rosa Dourado advances against Josefina Estevez. This market will resolve to 'Josefina Estevez' if Josefina Estevez advances against Jennifer Rosa Dourado. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 2, 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 Jennifer Rosa Dourado and Josefina Estevez in the W15 Sao Luis, Main Draw, originally scheduled for September 18, 2026 at 9:30AM ET. This market will resolve to 'Jennifer Rosa Dourado' if Jennifer Rosa Dourado advances against Josefina Estevez. This market will resolve to 'Josefina Estevez' if Josefina Estevez advances against Jennifer Rosa Dourado. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 2, 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.
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 these shares directly reflects the probability of that outcome occurring, as perceived by the market participants. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more traders who believe a particular player will win, the higher the price of shares representing that outcome will climb. This dynamic pricing allows the market to quickly incorporate new information and adjust probabilities in real-time, offering a different perspective than fixed-odds betting.
This market resolves around Sep 25, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will reflect the official result of the W15 Sao Luis tennis match between Jennifer Rosa Dourado and Josefina Estevez. The winner of the match, as determined by the official tournament organizers, will be the outcome used to settle this market. Any potential disputes or challenges to the official result will be evaluated based on publicly available information and established tennis officiating procedures.
Several factors could influence the odds in this market leading up to Sep 25, 2026. Any news regarding player injuries, changes in playing conditions (such as weather), or updates on their recent performance could all cause shifts in the market. Unexpected results in other matches involving these players, or even broader trends in women’s tennis, could also impact trader sentiment. Furthermore, significant trading volume from well-informed participants could signal a change in expectations and move the market accordingly. Keep an eye on tennis news sources for potential catalysts.