TOTAL VOLUME:
$154.4b
24H VOL:
$245,801,863
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,902,097,102
417,059
Markets across
40,178
events
MATCHED EVENTS:
4,415
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 28, 1:01 PM EST
Polymarket
This market refers to the tennis match between Sophia Biolay and Emma Slavikova in the W15 Essen, Main Draw, originally scheduled for October 28, 2026 at 7:00AM ET. This market will resolve to 'Sophia Biolay' if Sophia Biolay advances against Emma Slavikova. This market will resolve to 'Emma Slavikova' if Emma Slavikova advances against Sophia Biolay. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 11, 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 Sophia Biolay and Emma Slavikova in the W15 Essen, Main Draw, originally scheduled for October 28, 2026 at 7:00AM ET. This market will resolve to 'Sophia Biolay' if Sophia Biolay advances against Emma Slavikova. This market will resolve to 'Emma Slavikova' if Emma Slavikova advances against Sophia Biolay. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 11, 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 wisdom-of-the-crowd effect, potentially differing from initial sportsbook lines. Sportsbooks set odds to balance their risk and ensure profit, while this market represents the aggregated beliefs of informed traders. If a significant number of people believe a sportsbook is mispricing an outcome, they can express that view through trading activity here. However, as the event approaches, these odds tend to converge as more information is factored in by both groups. It’s common to see discrepancies initially, but those often narrow as the event draws closer.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in each outcome. The price of a share directly corresponds to 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 an outcome is likely, the higher the price of its shares will climb. Conversely, if sentiment shifts, the price will decrease. This dynamic pricing ensures that the market reflects the collective intelligence of those trading on the platform.
This market resolves around Nov 4, 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 Sophia Biolay versus Emma Slavikova tennis match in Essen. The platform will verify the winner against established tennis authorities and reporting to determine the final payout for this market. Traders will be able to see the resolution details and claim their winnings once the process is complete.
Several factors could influence trading activity in this market. Any news regarding player form, such as injury updates for either Sophia Biolay or Emma Slavikova, would likely cause significant shifts in the odds. Changes in weather conditions in Essen, particularly if they affect the playing surface, could also be a catalyst. Furthermore, any analysis from tennis experts predicting a clear advantage for one player over the other could sway trader sentiment and impact the price of shares in this market. Unexpected upsets in other matches involving these players could also have an effect.