TOTAL VOLUME:
$134.2b
24H VOL:
$129,159,707
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,442,132,418
404,744
Markets across
30,489
events
MATCHED EVENTS:
2,691
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 2, 8:20 PM EST
Polymarket
In the upcoming US Open ATP singles match between Rei Sakamoto and Frances Tiafoe, scheduled for September 2, 2026 at 11:00AM ET: This market will resolve based on the final set score of the Rei Sakamoto vs. Frances Tiafoe match. This match is played in a best-of-5-sets format. The possible outcomes are 3-0, 3-1, “Not Completed”, and 3-2 in either direction. If the match is canceled (not played at all), or is delayed beyond 14 days from the scheduled date at 11:59 PM ET without completion, this market will resolve to 'Not Completed'. 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 'Not Completed' regardless of the set score at the time. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 'Not Completed'. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
In the upcoming US Open ATP singles match between Rei Sakamoto and Frances Tiafoe, scheduled for September 2, 2026 at 11:00AM ET: This market will resolve based on the final set score of the Rei Sakamoto vs. Frances Tiafoe match. This match is played in a best-of-5-sets format. The possible outcomes are 3-0, 3-1, “Not Completed”, and 3-2 in either direction. If the match is canceled (not played at all), or is delayed beyond 14 days from the scheduled date at 11:59 PM ET without completion, this market will resolve to 'Not Completed'. 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 'Not Completed' regardless of the set score at the time. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 'Not Completed'. 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 because they reflect crowd-sourced probabilities rather than set odds. While sportsbooks may favor one player based on models or public betting patterns, prediction markets let traders adjust prices dynamically around new information, such as recent form or injury updates.
This market resolves around Sep 9, 2026, with the outcome confirmed once the match result is verifiable from credible public reporting. The exact final score reported by reputable sports news outlets will set the market’s settling value, closing all positions based on that official result.
Injuries, changes to the match schedule, and shifting player form can all impact this market as the event approaches Sep 9, 2026. Media coverage highlighting key statistics or head-to-head history may also sway trader sentiment. Any last-minute updates — such as weather conditions or coaching strategies — might cause rapid shifts in the odds as the match gets closer to starting.