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 8, 11:10 PM EST
Polymarket
This market refers to the doubles tennis match between Bolelli/Vavassori and Krajicek/Mektic in the US Open ATP, originally scheduled for September 8, 2026 at 6:30PM ET. This market will resolve to 'Bolelli/Vavassori' if the team of Bolelli/Vavassori advances against Krajicek/Mektic. This market will resolve to 'Krajicek/Mektic' if the team of Krajicek/Mektic advances against Bolelli/Vavassori. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 22, 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 Bolelli/Vavassori and Krajicek/Mektic in the US Open ATP, originally scheduled for September 8, 2026 at 6:30PM ET. This market will resolve to 'Bolelli/Vavassori' if the team of Bolelli/Vavassori advances against Krajicek/Mektic. This market will resolve to 'Krajicek/Mektic' if the team of Krajicek/Mektic advances against Bolelli/Vavassori. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 22, 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.
Typically, prediction market odds reflect the wisdom of the crowd and can differ from traditional sportsbook odds. Sportsbooks often set initial lines based on expert analysis and incorporate a profit margin, while this market allows traders to express their own beliefs and adjust prices based on new information. Discrepancies can arise due to differing opinions on player form, potential upsets, or even external factors influencing the match. It's common to see prediction markets converge towards the true probability of an outcome as the event approaches, potentially offering a more accurate assessment than initial sportsbook offerings.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the likelihood of a particular outcome. The price of a share directly reflects 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. The market’s price is determined by supply and demand; if more traders believe Bolelli/Vavassori will win, they will buy shares, driving up the price and increasing the implied probability. Conversely, increased selling pressure on shares representing Krajicek/Mektic would lower their price and implied probability.
This market resolves around Sep 15, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the US Open doubles match between Bolelli/Vavassori and Krajicek/Mektic as declared by the tournament organizers. The winning team will determine the outcome, and the platform will verify this information against official sources to ensure accuracy. Traders who correctly predicted the winner will receive a payout based on the final market prices at resolution.
Several factors could influence trading activity in this market. News regarding player injuries or changes in team composition would likely cause significant price movement. Updates on player form from recent matches, weather conditions at the US Open, or even strategic announcements from either team could also impact trader sentiment. Unexpected upsets in earlier rounds of the tournament, or general shifts in public perception of the players' chances, could all contribute to fluctuations in the market price leading up to Sep 15, 2026. Any information that alters the perceived probability of either team winning has the potential to move this market.