TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 4, 1:28 PM EST
Polymarket
This market refers to the doubles tennis match between Borges/Hijikata and Cash/Erler in the US Open ATP, originally scheduled for September 4, 2026 at 11:00AM ET. This market will resolve to 'Borges/Hijikata' if the team of Borges/Hijikata advances against Cash/Erler. This market will resolve to 'Cash/Erler' if the team of Cash/Erler advances against Borges/Hijikata. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 18, 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 Borges/Hijikata and Cash/Erler in the US Open ATP, originally scheduled for September 4, 2026 at 11:00AM ET. This market will resolve to 'Borges/Hijikata' if the team of Borges/Hijikata advances against Cash/Erler. This market will resolve to 'Cash/Erler' if the team of Cash/Erler advances against Borges/Hijikata. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 18, 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 markets like Polymarket often reflect information and insights that differ from traditional sportsbooks. Sportsbooks set odds based on statistical models and expert opinions, while this market aggregates the wisdom of the crowd. It’s common to see discrepancies, especially when significant public attention or unique information influences traders. Comparing the implied probabilities from both sources can reveal where the market anticipates outcomes that diverge from conventional expectations for the US Open doubles match.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome. The price of a share directly corresponds to the probability of that outcome occurring. As more traders participate, the price adjusts to reflect the collective assessment of the event. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current price indicates the market's expectation of whether Borges/Hijikata or Cash/Erler will win the doubles match, and is influenced by factors like player form, recent performance, and any news related to injuries or team dynamics.
This market resolves around Sep 11, 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 ATP doubles match between Borges/Hijikata and Cash/Erler. The platform will verify the match result against official tournament data to determine the winning team and finalize the market's outcome. Traders holding shares in the winning outcome will be paid out according to the final share price.
Several factors could influence the price of this market before the US Open doubles match concludes. Any news regarding player injuries, changes in playing conditions, or unexpected performance in preceding matches could shift trader sentiment. Significant upsets in other tournament rounds, or even commentary from tennis analysts, might also impact the market. Additionally, large trading volume from informed participants could signal a change in expectations, potentially leading to price fluctuations as the event approaches.