TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 16, 6:01 AM EST
Polymarket
This market refers to the tennis match between Elias Ymer and Luca Castelnuovo in the Guangzhou, originally scheduled for September 16, 2026 at 4:00AM ET. This market will resolve to 'Elias Ymer' if Elias Ymer advances against Luca Castelnuovo. This market will resolve to 'Luca Castelnuovo' if Luca Castelnuovo advances against Elias Ymer. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 30, 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 Elias Ymer and Luca Castelnuovo in the Guangzhou, originally scheduled for September 16, 2026 at 4:00AM ET. This market will resolve to 'Elias Ymer' if Elias Ymer advances against Luca Castelnuovo. This market will resolve to 'Luca Castelnuovo' if Luca Castelnuovo advances against Elias Ymer. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 30, 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 traders, potentially differing from sportsbook odds which may be influenced by factors like house bias or public perception. Sportsbooks set initial lines to balance betting action, while this market allows traders to freely adjust probabilities based on their own analysis. Discrepancies can arise from differing information sources, analytical approaches, or simply varying levels of confidence in a particular outcome. It's common to see prediction markets move independently of sportsbook lines as new information becomes available.
On Polymarket, this market is priced through a continuous trading mechanism where traders buy and sell shares representing their belief in the outcome. The price of a share directly reflects 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 allows the market to quickly incorporate new information and adjust probabilities accordingly, providing a forward-looking assessment of the event's potential results. The current trading volume indicates the level of interest and conviction surrounding the possible outcomes.
This market resolves around Sep 23, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Guangzhou tennis match between Elias Ymer and Luca Castelnuovo, as declared by the official tournament organizers. The platform will verify the result against established sports data sources to ensure accuracy and transparency. Traders will then be able to claim their winnings based on the final outcome of the match.
Several factors could influence the price movement of this market before resolution. Any news regarding player injuries, changes in playing conditions (weather, court surface), or updates on player form could all impact trader sentiment. Unexpected results in other matches involving these players, or even broader developments in the tennis world, could also contribute to shifts in the odds. Furthermore, large trades by influential market participants could temporarily move the price, reflecting their informed opinions on the likely outcome of the Guangzhou tennis match.