TOTAL VOLUME:
$154.4b
24H VOL:
$290,393,159
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,944,100,805
420,493
Markets across
40,511
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 18, 8:26 AM EST
Polymarket
This market refers to the tennis match between Tereza Stepankova and Zala Bizjak in the W15 Bol, Qualifying, originally scheduled for October 17, 2026 at 8:00PM ET. This market will resolve to 'Tereza Stepankova' if Tereza Stepankova advances against Zala Bizjak. This market will resolve to 'Zala Bizjak' if Zala Bizjak advances against Tereza Stepankova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 31, 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 Stepankova and Zala Bizjak in the W15 Bol, Qualifying, originally scheduled for October 17, 2026 at 8:00PM ET. This market will resolve to 'Tereza Stepankova' if Tereza Stepankova advances against Zala Bizjak. This market will resolve to 'Zala Bizjak' if Zala Bizjak advances against Tereza Stepankova. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 31, 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 different perspective than those found at traditional sportsbooks. Sportsbooks typically incorporate a 'vig' or commission into their odds to ensure profitability, and may be influenced by promotional considerations. This market, however, is driven purely by the collective wisdom of traders who are incentivized to accurately forecast the outcome. While sportsbooks may initially set odds based on statistical models and expert opinions, prediction markets can quickly adjust to new information and potentially offer more accurate probabilities as the event approaches. It's a fascinating comparison of different forecasting methods.
On Polymarket, this market is priced through a continuous auction mechanism. Traders buy and sell shares representing their belief in the likelihood of a particular outcome. As more shares are purchased for a specific outcome, its price increases, reflecting growing confidence. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of a share directly corresponds to the implied probability of that outcome occurring. The market’s price discovery process is entirely driven by supply and demand; traders are constantly adjusting their positions based on new information and their own assessments of the event’s potential results.
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 Bol match between Tereza Stepankova and Zala Bizjak. The platform will rely on widely accepted sources to determine the winner of the match, ensuring a transparent and objective resolution process. Traders will then be able to claim their winnings based on the final outcome and their positions in this market.
Several factors could influence the trading activity in this market leading up to Oct 25, 2026. Any news regarding player injuries, changes in playing conditions, or significant shifts in player form could all impact trader sentiment. Unexpected results in other matches involving these players, or even broader trends in the W15 Bol tournament, could also contribute to price movements. Furthermore, large trades by influential participants on Polymarket could create short-term volatility, as others react to their actions and adjust their own positions accordingly.