TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 31, 7:18 PM EST
Polymarket
This event group covers the exact score and total sets outcome of the US Open ATP singles match between Alexander Blockx and Tomas Barrios, scheduled for August 30, 2026.
In the upcoming US Open ATP singles match between Alexander Blockx and Tomas Barrios, scheduled for August 30, 2026 at 11:00AM ET: This market will resolve based on the final set score of the Alexander Blockx vs. Tomas Barrios 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.
This market refers to the tennis match between Alexander Blockx and Marcelo Tomas Barrios Vera in the ATP US Open, originally scheduled for August 30, 2026 at 15:00 UTC. This market will resolve to "YES" if the total number of sets completed equals or exceeds 4. Otherwise, it will resolve to "NO." A super tie breaker is considered as one (1) set for total set markets. If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Prediction market odds often reflect sharper insights than traditional sportsbook lines because traders can speculate on granular outcomes like exact scores. Unlike sportsbooks, which may limit options to set winners or margins, this market lets participants price every possible score combination. That granularity can reveal tighter odds and more nuanced expectations, especially when a match appears lopsided or highly competitive. Traders weigh factors such as recent form and head-to-head history directly into their bets.