TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 28, 6:10 PM EST
Polymarket
This market refers to the tennis match between Tereza Tsybulska and Mirabelle Tahiri in the W15 Monastir, Qualifying, originally scheduled for September 28, 2026 at 5:30AM ET. This market will resolve to 'Tereza Tsybulska' if Tereza Tsybulska advances against Mirabelle Tahiri. This market will resolve to 'Mirabelle Tahiri' if Mirabelle Tahiri advances against Tereza Tsybulska. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 12, 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 Tereza Tsybulska and Mirabelle Tahiri in the W15 Monastir, Qualifying, originally scheduled for September 28, 2026 at 5:30AM ET. This market will resolve to 'Tereza Tsybulska' if Tereza Tsybulska advances against Mirabelle Tahiri. This market will resolve to 'Mirabelle Tahiri' if Mirabelle Tahiri advances against Tereza Tsybulska. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 12, 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.
Prediction market odds often reflect the wisdom of the crowd, potentially differing from traditional sportsbook odds. Sportsbooks set lines based on their own models and aim to balance action on both sides, while this market aggregates the beliefs of many individual traders. If a significant number of informed bettors believe a sportsbook has mispriced an outcome, the prediction market may show a different probability. It's common to see discrepancies, especially before significant news or events impact perceptions of the players' chances.
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 reflects the implied 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 to reflect the collective assessment of the players' chances. The current volume traded indicates the level of interest and conviction in the market.
This market resolves around Oct 5, 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 Monastir tennis match between Tereza Tsybulska and Mirabelle Tahiri, as reported by a recognized tennis authority. The platform will verify the result against these sources to determine which outcome corresponds to the actual match winner. Traders holding shares in the winning outcome will be paid out according to the final share price.
Several signals could influence this market before resolution. Any news regarding player injuries, changes in playing conditions, or updates on their recent performance could shift trader sentiment. Unexpected results in other matches involving these players, or even broader tennis news, might also play a role. Significant betting activity or large trades on Polymarket could also indicate a shift in expectations, causing the odds to move. Monitoring these factors can help you understand potential catalysts for price changes.