TOTAL VOLUME:
$154.4b
24H VOL:
$245,801,863
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,902,097,102
417,059
Markets across
40,178
events
MATCHED EVENTS:
4,415
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 28, 1:43 AM EST
Polymarket
This market refers to the tennis match between Kaichi Uchida and Harold Mayot in the Ningbo, originally scheduled for October 28, 2026 at 10:00PM ET. This market will resolve to 'Kaichi Uchida' if Kaichi Uchida advances against Harold Mayot. This market will resolve to 'Harold Mayot' if Harold Mayot advances against Kaichi Uchida. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 11, 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 Kaichi Uchida and Harold Mayot in the Ningbo, originally scheduled for October 28, 2026 at 10:00PM ET. This market will resolve to 'Kaichi Uchida' if Kaichi Uchida advances against Harold Mayot. This market will resolve to 'Harold Mayot' if Harold Mayot advances against Kaichi Uchida. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 11, 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.
Generally, prediction market odds often reflect a wisdom-of-the-crowd effect, potentially incorporating information not fully captured by traditional sportsbooks. Sportsbook odds are typically set by professional oddsmakers, while this market’s probabilities are determined by the collective predictions of individual traders. Discrepancies can arise due to differing information access, biases, or simply the dynamic nature of both markets. It’s common to see this market adjust rapidly to new information, potentially leading to odds that diverge from, or converge with, those offered by sportsbooks.
On Polymarket, this market is priced through a continuous auction mechanism, where traders buy and sell shares representing their belief in the outcome of the Uchida vs Mayot match. The price of these shares directly reflects the implied probability of that outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and new information becomes available, the price adjusts to reflect the collective assessment. This creates a dynamic and liquid market where the odds are constantly updated based on supply and demand for shares.
This market resolves around Nov 5, 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 Ningbo tennis match between Kaichi Uchida and Harold Mayot. The platform will verify the result against widely available and trusted sources to determine the winning outcome. Traders holding shares in the winning outcome will be paid out according to the final market price at resolution.
Several factors could influence the price of this market before Nov 5, 2026. Any news regarding player injuries, changes in playing conditions, or updates on their recent performance could significantly shift trader sentiment. Unexpected results in other matches involving these players, or even broader tennis news, might also cause price fluctuations. Furthermore, large trading volume from informed traders could indicate a shift in expectations and move the market accordingly. Monitoring these signals will be key to understanding potential price movements.