TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 21, 10:11 AM EST
Polymarket
This market refers to the tennis match between Isis Louise Van den Broek and Ashley Lahey in the W50 Yecla, Qualifying, originally scheduled for September 21, 2026 at 8:00AM ET. This market will resolve to 'Isis Louise Van den Broek' if Isis Louise Van den Broek advances against Ashley Lahey. This market will resolve to 'Ashley Lahey' if Ashley Lahey advances against Isis Louise Van den Broek. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 5, 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 Isis Louise Van den Broek and Ashley Lahey in the W50 Yecla, Qualifying, originally scheduled for September 21, 2026 at 8:00AM ET. This market will resolve to 'Isis Louise Van den Broek' if Isis Louise Van den Broek advances against Ashley Lahey. This market will resolve to 'Ashley Lahey' if Ashley Lahey advances against Isis Louise Van den Broek. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 5, 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.
Typically, prediction market odds reflect a different kind of wisdom than those found at sportsbooks. Sportsbooks often incorporate a 'vig' or commission into their odds, and may adjust lines to balance betting action. This market, however, represents the collective belief of traders who are incentivized to accurately predict the outcome. While sportsbooks may initially offer different odds, they often move closer to prediction market prices as the event approaches, as sportsbooks also incorporate new information and betting patterns. It’s a useful exercise to compare the two to see where discrepancies exist.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in a particular outcome. The price of a share directly reflects 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. As more traders buy shares in a specific player, the price of those shares increases, indicating a higher perceived probability of victory. Conversely, selling pressure lowers the price. This dynamic pricing ensures the market reflects the most up-to-date collective intelligence.
This market resolves around Sep 28, 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 Yecla tennis match between Isis Louise Van den Broek and Ashley Lahey. The winner of the match, as declared by the official tournament organizers, will determine the winning outcome in this market. The platform will verify the result against trusted sports news sources and official tournament data to ensure accuracy.
Several factors could influence trading activity and shift the odds in this market. Any news regarding player form, such as injury updates or recent match results, could significantly impact the perceived probabilities. Changes in weather conditions at the Yecla tournament could also play a role, as certain players may perform better in specific conditions. Additionally, unexpected upsets in other matches leading up to this one could alter the overall tournament landscape and affect trader sentiment. Major shifts in volume could also indicate new information is being priced in.