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 2, 1:04 PM EST
Kalshi
This market focuses on determining which player, Daria Kasatkina or Paula Badosa, will win the second set of their tennis match at the 2026 US Open Women Singles Round Of 128. The outcome depends solely on the result of set 2, regardless of the overall match result. Settlement considers potential match disruptions such as injuries, cancellations, or retirements, with specific guidelines for fair pricing or resolution based on completed play.
The market resolves based on which player wins the second set in the specified professional tennis match. If the match does not commence due to injury, walkover, forfeiture, or cancellation before any play, the market settles at a fair price. Postponements or delays keep the market open until the rescheduled match concludes, with settlement occurring within two weeks after completion. In the event of a player retirement during the match, any markets that can be definitively settled based on completed portions of the match will do so, while unresolved markets will settle at a fair market price determined by the Exchange. The Exchange retains sole discretion in determining fair market prices when necessary.
On Kalshi, this market reflects trader sentiment rather than traditional sportsbook lines. Prediction market odds adjust dynamically based on real-time trading activity and can diverge from sportsbook odds due to different participant motivations and information sources. While sportsbooks may incorporate broader public betting trends and adjusted risk models, this market prices in the collective wisdom of its specific user base. The resulting probability can therefore appear more volatile or reactive to niche insights, especially as Aug 30, 2026 approaches and new data emerges.
This market resolves around Aug 30, 2026, with the outcome confirmed once the match result is verifiable from credible public reporting. The winner of the second set will be compared against the market’s selected outcomes at that time, closing all positions based on the official match record.