TOTAL VOLUME:
$154.3b
24H VOL:
$228,458,490
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,879,276,037
410,833
Markets across
40,345
events
MATCHED EVENTS:
4,363
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 27, 11:37 AM EST
Polymarket
This market refers to the tennis match between Andrea Roots and Iida Heinonen in the W15 Taby, Qualifying, originally scheduled for October 27, 2026 at 6:00AM ET. This market will resolve to 'Andrea Roots' if Andrea Roots advances against Iida Heinonen. This market will resolve to 'Iida Heinonen' if Iida Heinonen advances against Andrea Roots. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 10, 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 Andrea Roots and Iida Heinonen in the W15 Taby, Qualifying, originally scheduled for October 27, 2026 at 6:00AM ET. This market will resolve to 'Andrea Roots' if Andrea Roots advances against Iida Heinonen. This market will resolve to 'Iida Heinonen' if Iida Heinonen advances against Andrea Roots. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 10, 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 those set by sportsbooks. Sportsbooks establish lines based on their own analysis and aim to balance action on both sides, while this market allows anyone to express their belief about the outcome. If a significant discrepancy exists between prediction market probabilities and sportsbook odds, it could indicate differing opinions or information. It’s common to see prediction markets incorporate information faster than sportsbooks, especially for events with a lot of public attention.
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 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. The market's price is driven entirely by supply and demand, reflecting the collective assessment of traders. This dynamic pricing allows the market to quickly adapt to new information and changing sentiment.
This market resolves around Nov 3, 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 Taby match between Andrea Roots and Iida Heinonen, as reported by the official tournament organizers. This ensures a transparent and objective determination of the winning outcome. Traders will be able to claim their winnings once the result is verified and the market is settled on Polymarket.
Several factors could influence the price of this market before resolution. Any news regarding player form, injuries, or changes in playing conditions for either Andrea Roots or Iida Heinonen could significantly shift probabilities. Unexpected results in other matches involving these players, or broader shifts in tennis rankings, might also impact trading activity. Public sentiment, reflected in social media or expert analysis, can also play a role, as traders react to new information and adjust their positions accordingly.