TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 31, 10:04 PM EST
Kalshi
This event group tracks the exact set score of the Ben Shelton vs. Tallon Griekspoor match at the 2026 US Open Men Singles Round Of 128. Markets resolve based on whether the match concludes with one of six specific set scores: 3-0, 3-1, or 3-2 in either direction.
In the upcoming US Open ATP singles match between Ben Shelton and Tallon Griekspoor, scheduled for August 30, 2026 at 11:00AM ET: This market will resolve based on the final set score of the Ben Shelton vs. Tallon Griekspoor 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.
The event determines if Ben Shelton or Tallon Griekspoor wins the 2026 US Open Men Singles Round Of 128 match with an exact set score of 3-0, 3-1, or 3-2. If the specified player achieves victory with the designated score, the corresponding market resolves to Yes. Should the match not occur before play begins—due to injury, walkover, forfeiture, or cancellation—the market resolves to a fair price. Postponements or delays keep the market open until the rescheduled match concludes, with settlement within two weeks. If a player retires during the match, markets can resolve based on completed play; unresolved markets settle at Fair Market Price at the Exchange's discretion. Kalshi disclaims any official affiliation with the governing league, and all trademarks remain property of their respective owners.