TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 25, 6:53 PM EST
Polymarket
This market refers to the tennis match between Julia Avdeeva and Katherine Sebov in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to 'Julia Avdeeva' if Julia Avdeeva advances against Katherine Sebov. This market will resolve to 'Katherine Sebov' if Katherine Sebov advances against Julia Avdeeva. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 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 WTA Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Julia Avdeeva and Katherine Sebov in the US Open, Qualification WTA, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to 'Julia Avdeeva' if Julia Avdeeva advances against Katherine Sebov. This market will resolve to 'Katherine Sebov' if Katherine Sebov advances against Julia Avdeeva. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 8, 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 WTA Tour. A consensus of credible reporting may also be used.
Prediction market odds in this market often reflect sharper, more nuanced insights than traditional sportsbook lines because they incorporate real-time trader sentiment and can adjust more rapidly. While sportsbooks may lag or smooth probabilities for broader appeal, this market can show tighter spreads and more volatile pricing, especially as new information like player form or weather conditions emerges.
This market resolves around Sep 1, 2026, with the outcome confirmed once the match result is verifiable from credible public reporting. The winner of the match will settle the market, and any official tournament results or reputable sports news sources will be used to verify the final decision.
Injuries, weather delays, or last-minute player withdrawals could shift this market significantly before resolution. Additionally, strong performances in warm-up matches, media updates, or changes in betting volume on Polymarket can cause rapid price swings. Any new information affecting either player’s chances is likely to be reflected quickly in the odds.