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 22, 4:55 PM EST
Polymarket
This market refers to the tennis match between Arianna Zucchini and Janae Preston in the W50 Berkeley, CA, Qualifying, originally scheduled for September 22, 2026 at 1:00PM ET. This market will resolve to 'Arianna Zucchini' if Arianna Zucchini advances against Janae Preston. This market will resolve to 'Janae Preston' if Janae Preston advances against Arianna Zucchini. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 6, 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 Arianna Zucchini and Janae Preston in the W50 Berkeley, CA, Qualifying, originally scheduled for September 22, 2026 at 1:00PM ET. This market will resolve to 'Arianna Zucchini' if Arianna Zucchini advances against Janae Preston. This market will resolve to 'Janae Preston' if Janae Preston advances against Arianna Zucchini. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 6, 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 collective wisdom of a diverse group of participants, potentially offering a different perspective than traditional sportsbooks. Sportsbooks set their lines based on statistical models and expert analysis, while this market aggregates the beliefs of many individual traders. Discrepancies can arise due to differing information, biases, or interpretations of the players’ form and potential. It's common to see prediction markets move independently of sportsbook odds, especially as new information emerges closer to the event.
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 implied probability of that outcome occurring. As more traders buy shares in a particular player, the price increases, reflecting a growing expectation of victory. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market efficiently incorporates new information as traders react to news, injury reports, and other relevant factors, adjusting their positions and influencing the price.
This market resolves around Sep 29, 2026, with the outcome confirmed once the winner of the W50 Berkeley tennis match is verifiable from credible public reporting. The resolution will be based on the official results published by the tournament organizers. The platform will verify the information 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 result of the match.
Several factors could significantly influence this market before the match concludes. Any news regarding player injuries, changes in playing conditions (like weather), or updates on their recent performance could shift the odds. Unexpected results in preceding matches or even social media commentary from tennis analysts could also impact trader sentiment. A strong showing by one player in a warm-up set, or a perceived psychological advantage, could all contribute to movements in the market price as traders adjust their predictions.