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, 7:37 PM EST
Polymarket
This market tracks whether Frances Tiafoe will advance against Alex Michelsen in their US Open ATP match, originally scheduled for September 8, 2026 at 11:30AM ET. Currently, Polymarket gives a 100.0% probability to Frances Tiafoe winning the match. The resolution source for this market is the official ATP Tour website at https://www.atptour.com/en/scores/current. Keep an eye on the official match results following the conclusion of the betting period on September 15, 2026, as that is when this market will resolve.
This market refers to the tennis match between Frances Tiafoe and Alex Michelsen in the US Open ATP, originally scheduled for September 8, 2026 at 11:30AM ET. This market will resolve to 'Frances Tiafoe' if Frances Tiafoe advances against Alex Michelsen. This market will resolve to 'Alex Michelsen' if Alex Michelsen advances against Frances Tiafoe. 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 player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player 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 power rankings and expert analysis, while this market allows anyone to trade on their beliefs, potentially leading to more accurate probabilities as new information emerges. Discrepancies can arise due to differing levels of information, biases, or simply variations in opinion. It's common to see prediction markets react more quickly to breaking news or shifts in public sentiment than sportsbooks.
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 ATP match between Frances Tiafoe and Alex Michelsen. The platform will verify the result against widely available sources to determine the winning outcome. This ensures a transparent and objective resolution process for all participants in this market.
Several factors could influence the trading activity in this market. Any news regarding player injuries, changes in playing conditions, or unexpected performance in preceding matches could significantly shift the odds. Public sentiment, as reflected by expert analysis and social media discussion, can also play a role. Additionally, large trades by influential participants could create momentum and impact the price of shares. Monitoring these signals will be key to understanding potential movements in this market before Sep 15, 2026.