TOTAL VOLUME:
$154.7b
24H VOL:
$279,496,801
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,923,931,766
416,910
Markets across
40,107
events
MATCHED EVENTS:
4,571
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 22, 3:01 PM EST
Polymarket
This market refers to the tennis match between Kaylan Bigun and Aidan Mayo in the Fort Worth, originally scheduled for October 21, 2026 at 11:00AM ET. This market will resolve to 'Kaylan Bigun' if Kaylan Bigun advances against Aidan Mayo. This market will resolve to 'Aidan Mayo' if Aidan Mayo advances against Kaylan Bigun. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 4, 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 ATP Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Kaylan Bigun and Aidan Mayo in the Fort Worth, originally scheduled for October 21, 2026 at 11:00AM ET. This market will resolve to 'Kaylan Bigun' if Kaylan Bigun advances against Aidan Mayo. This market will resolve to 'Aidan Mayo' if Aidan Mayo advances against Kaylan Bigun. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 4, 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 ATP Tour. A consensus of credible reporting may also be used.
Prediction market odds often reflect the collective wisdom of a diverse group of forecasters, potentially offering a different perspective than traditional sportsbooks. Sportsbooks set lines based on their own models and aim to balance action on both sides, while this market is driven purely by individuals willing to put their capital behind their beliefs. It’s common to see discrepancies emerge, especially when public perception differs from expert analysis. Comparing the two can provide valuable insights, though it’s important to remember they represent distinct forecasting approaches and cater to different user bases.
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, the price increases, and vice versa. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. This dynamic pricing reflects the aggregated sentiment of all participants, creating a real-time forecast. The market’s efficiency depends on active trading and the availability of information, allowing the price to adjust rapidly to new developments related to the Bigun vs Mayo match.
This market resolves around Oct 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 Bigun vs Mayo match as declared by the governing sports authority. The platform will verify the result against publicly available sources to ensure accuracy and transparency. Traders who correctly predicted the outcome will be entitled to a payout based on the final share price at the time of resolution. It’s important to monitor the event closely as the resolution date approaches to stay informed of any potential delays or changes.
Several factors could influence the price of shares in this market leading up to Oct 28, 2026. Any news regarding the physical condition of either Kaylan Bigun or Aidan Mayo, such as injuries or illness, would likely cause significant movement. Changes in coaching strategies or unexpected performance in prior matches could also shift expectations. Public sentiment, reflected in media coverage and social media discussions, can also play a role, particularly if it deviates from initial assessments. Ultimately, any information that alters the perceived probability of either competitor winning has the potential to move this market.