TOTAL VOLUME:
$154.8b
24H VOL:
$244,077,041
24H TRANSACTIONS:
2,985,204,718
OPEN INTEREST:
$1,901,278,909
407,043
Markets across
39,548
events
MATCHED EVENTS:
4,422
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 20, 7:51 AM EST
Polymarket
This market refers to the tennis match between Jiri Cizek and Joao Mendes in the M15 Heraklion, Qualifying, originally scheduled for October 20, 2026 at 3:30AM ET. This market will resolve to 'Jiri Cizek' if Jiri Cizek advances against Joao Mendes. This market will resolve to 'Joao Mendes' if Joao Mendes advances against Jiri Cizek. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 3, 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 Jiri Cizek and Joao Mendes in the M15 Heraklion, Qualifying, originally scheduled for October 20, 2026 at 3:30AM ET. This market will resolve to 'Jiri Cizek' if Jiri Cizek advances against Joao Mendes. This market will resolve to 'Joao Mendes' if Joao Mendes advances against Jiri Cizek. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 3, 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 forecasters, potentially differing from sportsbook odds which can be influenced by factors like house bias or public perception. Sportsbooks set initial lines to balance betting action, while this market allows traders to continuously adjust probabilities based on new information and analysis. It’s common to see discrepancies, especially before significant events or when there’s considerable uncertainty surrounding the outcome of the Cizek vs Mendes match. Comparing the two can reveal where the crowd disagrees with professional oddsmakers.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the likelihood of each outcome. The price of a share directly corresponds to the implied probability of that outcome occurring. As more traders participate, the price adjusts to reflect the aggregated sentiment. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price is determined solely by supply and demand within Polymarket, and is not influenced by external factors or other prediction markets. The current volume suggests moderate interest in the Cizek vs Mendes match.
This market resolves around Oct 27, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Cizek vs Mendes match as reported by the governing tennis authority. The platform will verify the result against publicly available sources to determine the winning outcome. Traders who correctly predicted the result 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 Oct 27, 2026 approaches.
Several signals could influence the price of this market before Oct 27, 2026. Any news regarding player form, injuries to either Cizek or Mendes, or changes in playing conditions (court surface, weather) could all shift trader sentiment. Unexpected results in other matches leading up to the event might also impact expectations. Furthermore, any significant analysis from tennis experts or shifts in public opinion could drive trading activity and change the implied probabilities. Monitoring these factors will be key to understanding potential price movements in this market.