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: Sep 11, 6:47 PM EST
Polymarket
This market tracks whether a total of over 8.5 games will be played in the third set of the Alexander Zverev versus Karen Khachanov match at the US Open ATP tournament. Currently, Polymarket gives a 100.0% probability to “Zverev vs. Khachanov: Set 3 Games O/U 8.5”. 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 match itself, originally scheduled for September 11, 2026 at 3:00PM ET, as the outcome will depend on the number of games played in the third set during that fixture.
This market refers to the tennis match between Alexander Zverev and Karen Khachanov in the US Open ATP, originally scheduled for September 11, 2026 at 3:00PM ET. This market will resolve to 'Alexander Zverev' if Alexander Zverev advances against Karen Khachanov. This market will resolve to 'Karen Khachanov' if Karen Khachanov advances against Alexander Zverev. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 25, 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 to balance betting action, while this market’s probabilities are driven purely by traders’ willingness to buy or sell based on their individual assessments. If there’s a significant discrepancy, it may indicate that the market believes a sportsbook has mispriced the likelihood of a particular outcome. Analyzing these differences can offer valuable insights into where potential value lies.
This market resolves around Sep 18, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the ATP US Open match between Alexander Zverev and Karen Khachanov. The platform will verify the winner based on publicly available sources, such as the official ATP website or reputable sports news outlets. Traders will then be able to claim their winnings based on the final result.
Several factors could influence the probabilities in this market. Any news regarding player injuries, changes in playing conditions, or even significant shifts in public perception could cause the odds to move. Unexpected results in other matches leading up to the Zverev vs Khachanov contest could also impact trader sentiment. Furthermore, updates on player form, training schedules, or tactical adjustments could all contribute to fluctuations in the market price as traders react to new information.