TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 21, 1:04 PM EST
Polymarket
This market refers to the doubles tennis match between Hsieh/Ostapenko and Kempen/Panova in the Cincinnati Open, originally scheduled for August 21, 2026 at 11:00AM ET. This market will resolve to 'Hsieh/Ostapenko' if the team of Hsieh/Ostapenko advances against Kempen/Panova. This market will resolve to 'Kempen/Panova' if the team of Kempen/Panova advances against Hsieh/Ostapenko. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50. If the match begins but is not completed, and one team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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 doubles tennis match between Hsieh/Ostapenko and Kempen/Panova in the Cincinnati Open, originally scheduled for August 21, 2026 at 11:00AM ET. This market will resolve to 'Hsieh/Ostapenko' if the team of Hsieh/Ostapenko advances against Kempen/Panova. This market will resolve to 'Kempen/Panova' if the team of Kempen/Panova advances against Hsieh/Ostapenko. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50. If the match begins but is not completed, and one team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team 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.
On Polymarket, this market reflects trader sentiment rather than traditional sportsbook lines. Prediction markets often price in nuanced factors like recent form and head-to-head history, which sportsbooks may weigh differently. The current implied probability can diverge noticeably from sportsbook favorites due to real-time trading dynamics. Traders might see value where sportsbooks assign higher odds to a favored team, especially if recent data suggests an upset. This difference allows bettors to compare perspectives and identify potential edges between decentralized markets and established sports betting platforms.
This market resolves around Aug 28, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result is determined by the official match result from the tournament organizers, and the market will close accordingly to reflect the actual winner of the doubles match.
Key updates like player injuries, weather forecasts, or last-round performance shifts could strongly influence this market. As the match approaches Aug 28, 2026, practice session reports and coach commentary may sway trader sentiment. Sudden changes in team momentum or unexpected lineup decisions often trigger rapid price adjustments. Any news affecting either pair’s preparation or confidence levels will likely create volatility, directing volume toward the perceived favorite or underdog depending on fresh information.