TOTAL VOLUME:
$154.8b
24H VOL:
$260,393,102
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,894,304,386
408,643
Markets across
39,771
events
MATCHED EVENTS:
4,493
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 19, 9:56 AM EST
Polymarket
This market refers to the tennis match between Mia Sara Ribnikar and Diana Petrasova in the W15 Bol, Qualifying, originally scheduled for October 19, 2026 at 5:00AM ET. This market will resolve to 'Mia Sara Ribnikar' if Mia Sara Ribnikar advances against Diana Petrasova. This market will resolve to 'Diana Petrasova' if Diana Petrasova advances against Mia Sara Ribnikar. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 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 Mia Sara Ribnikar and Diana Petrasova in the W15 Bol, Qualifying, originally scheduled for October 19, 2026 at 5:00AM ET. This market will resolve to 'Mia Sara Ribnikar' if Mia Sara Ribnikar advances against Diana Petrasova. This market will resolve to 'Diana Petrasova' if Diana Petrasova advances against Mia Sara Ribnikar. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 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 a share directly corresponds to the probability of that outcome occurring. As more traders participate, the price adjusts to reflect the collective assessment. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current price reflects the perceived likelihood of a particular player winning the match, and changes based on new information or shifts in sentiment. The market’s efficiency is driven by the incentive for traders to accurately predict the result.
This market resolves around Oct 26, 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 Mia Sara Ribnikar vs Diana Petrasova match, as reported by the governing body for this competition. The platform will verify the result against established sources to ensure accuracy and transparency. Traders will then be able to claim their winnings or adjust their strategies based on the final outcome of this market.
Several signals could influence this market before Oct 26, 2026. News regarding player injuries, changes in coaching strategies, or even weather conditions could all shift the perceived probabilities. Unexpected results in other matches involving these players could also impact sentiment. Any significant development that alters the expected performance of either Mia Sara Ribnikar or Diana Petrasova has the potential to move the market. Increased trading volume, driven by new information, would also be a key indicator of changing expectations.