TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 1, 5:38 PM EST
Kalshi
This market focuses on predicting which player will win the first set of a tennis match between Kaitlin Quevedo and Elise Mertens at the 2026 US Open. The outcome depends solely on the result of the first set, regardless of what happens in subsequent sets or the overall match. If the match does not start due to cancellation or injury, the market resolves to a fair price instead of a definitive win for either player.
The market resolves based on which player wins the first set of the Kaitlin Quevedo vs Elise Mertens professional tennis match in the 2026 US Open Women Singles Round of 128. If the match does not occur before any play due to injury, walkover, forfeiture, or cancellation, it resolves to a fair price. Postponements keep the market open until the rescheduled match concludes. If a player retires during the match, markets that can be settled based on completed play will resolve accordingly, while unresolved markets will settle at a fair market price determined by the Exchange. Kalshi is not affiliated with the governing league, and all trademarks remain property of their respective owners.
On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Kalshi, traders actively set the price for this market through their buying and selling activity. The current top outcome reflects the collective assessment of participants about which player is more likely to win the first set. As the event nears, any shift in player form, injury updates, or weather conditions can cause rapid adjustments in the market price.
This market resolves around Aug 30, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The winner of the first set will be the official result used to determine the market outcome. No further analysis or interpretation is needed beyond confirming the match result from reliable sports news and official match records.
Key signals that could shift this market include practice session reports, player injury updates, or any last-minute changes to the match schedule. Weather conditions on match day could also influence performance and therefore market movement. As these updates arise, trader sentiment may swing toward either player, causing noticeable changes in the odds and volume leading up to Aug 30, 2026.