TOTAL VOLUME:
$154.5b
24H VOL:
$271,200,656
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,922,627,141
420,368
Markets across
40,352
events
MATCHED EVENTS:
4,484
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 18, 4:49 PM EST
Polymarket
This market refers to the tennis match between Maria Fernanda Lopes and Isabella Mai in the W15 Campina Grande, Qualifying, originally scheduled for October 18, 2026 at 10:00AM ET. This market will resolve to 'Maria Fernanda Lopes' if Maria Fernanda Lopes advances against Isabella Mai. This market will resolve to 'Isabella Mai' if Isabella Mai advances against Maria Fernanda Lopes. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 1, 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 Maria Fernanda Lopes and Isabella Mai in the W15 Campina Grande, Qualifying, originally scheduled for October 18, 2026 at 10:00AM ET. This market will resolve to 'Maria Fernanda Lopes' if Maria Fernanda Lopes advances against Isabella Mai. This market will resolve to 'Isabella Mai' if Isabella Mai advances against Maria Fernanda Lopes. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 1, 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 a share directly corresponds to the implied probability of that outcome occurring. As more people 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. This dynamic pricing allows the market to quickly incorporate new information and reflect the collective intelligence of the traders participating in this market.
This market resolves around Oct 25, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official result of the W15 Campina Grande tennis match between Maria Fernanda Lopes and Isabella Mai. The platform will verify the result against established sports data sources to ensure accuracy and transparency. Traders will then be able to claim their winnings based on the final outcome.
Several factors could influence trading activity and move this market before resolution. Any news regarding player form, injuries, or changes in playing conditions could significantly impact the perceived probabilities. Unexpected results in other matches involving these players, or even broader trends in women’s tennis, could also shift market sentiment. Furthermore, large trades by influential market participants could cause noticeable price movements, reflecting a change in overall belief about the likely winner of the Lopes vs Mai match.