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 1, 1:02 PM EST
Polymarket
This market refers to the doubles tennis match between Gurri/Batalla and Gornes/Walkow in the Porto, originally scheduled for September 1, 2026 at 5:00AM ET. This market will resolve to 'Gurri/Batalla' if the team of Gurri/Batalla advances against Gornes/Walkow. This market will resolve to 'Gornes/Walkow' if the team of Gornes/Walkow advances against Gurri/Batalla. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 15, 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 Gurri/Batalla and Gornes/Walkow in the Porto, originally scheduled for September 1, 2026 at 5:00AM ET. This market will resolve to 'Gurri/Batalla' if the team of Gurri/Batalla advances against Gornes/Walkow. This market will resolve to 'Gornes/Walkow' if the team of Gornes/Walkow advances against Gurri/Batalla. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 15, 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.
Prediction market odds in this market often differ from traditional sportsbook lines due to the decentralized nature of trader-driven pricing. While sportsbooks may set their lines based on analytical models and public betting patterns, prediction markets reflect the collective wisdom of participants betting real money. This can lead to tighter spreads or sharper movements as new information emerges.
On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Polymarket, traders continuously set the price through their bets, which determines the current implied probability for each outcome. The top outcome’s chance is reflected in the market’s percentage, showing how participants collectively evaluate the likelihood of each team’s victory. Volume and recent trade activity also influence pricing dynamics on the platform.
This market resolves around Sep 8, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The final result will be determined by the official match conclusion, and the market will close based on that verified data. No further trading will occur after the event is officially settled.
Injuries, weather delays, or changes to the players’ form could shift this market as the event nears. Media updates, pre-match betting trends on Polymarket, and any last-minute team announcements may also cause price swings. Traders will react to any new information that affects the perceived likelihood of each team’s success.