TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 11, 11:36 AM EST
Polymarket
This market refers to the doubles tennis match between Fancutt/Watanabe and Added/Masur in the Cassis, originally scheduled for September 11, 2026 at 9:00AM ET. This market will resolve to 'Fancutt/Watanabe' if the team of Fancutt/Watanabe advances against Added/Masur. This market will resolve to 'Added/Masur' if the team of Added/Masur advances against Fancutt/Watanabe. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 25, 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 doubles tennis match between Fancutt/Watanabe and Added/Masur in the Cassis, originally scheduled for September 11, 2026 at 9:00AM ET. This market will resolve to 'Fancutt/Watanabe' if the team of Fancutt/Watanabe advances against Added/Masur. This market will resolve to 'Added/Masur' if the team of Added/Masur advances against Fancutt/Watanabe. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 25, 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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' that can differ from traditional sportsbooks. Sportsbooks set lines based on their own models and aim to balance action on both sides, while this market represents the collective beliefs of informed traders. Discrepancies can arise due to differing information, biases, or risk assessments. It's common to see prediction markets incorporate information more quickly than sportsbooks, particularly when new developments emerge that impact the perceived probabilities of the players winning the Cassis doubles match.
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. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and express their views, the price adjusts to reflect the collective assessment of the Cassis doubles match. The market's price is determined solely by supply and demand within Polymarket.
This market resolves around Sep 18, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Cassis doubles match between Fancutt/Watanabe and Added/Masur. The winning team, as determined by the official tournament organizers, will dictate the outcome of this market. Traders will be able to view the resolution details on Polymarket following the completion of the match and verification of the results.
Several factors could influence trading activity and shift the odds in this market. Any news regarding player form, potential injuries to either Fancutt, Watanabe, Added, or Masur, or changes in playing conditions could all impact trader sentiment. Unexpected results in preceding matches or significant shifts in public opinion regarding the players' chances of winning could also cause the market to move. Furthermore, major strategic announcements or tactical adjustments by either team leading up to the Cassis doubles match could also trigger price fluctuations.