TOTAL VOLUME:
$134.2b
24H VOL:
$143,246,370
24H TRANSACTIONS:
2,403,290,006
OPEN INTEREST:
$1,452,035,386
405,032
Markets across
30,543
events
MATCHED EVENTS:
2,690
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 7, 4:46 PM EST
Kalshi
The first set of this marquee tennis clash will set the tone for the entire contest. Whether Naomi Osaka or Elena Rybakina takes this initial frame could significantly influence strategies, confidence levels, and crowd dynamics throughout the remainder of the match.
If Naomi Osaka wins set 1 in the Naomi Osaka vs Elena Rybakina professional tennis match in the 2026 US Open Women Singles Round Of 16, then the market resolves to Yes. If Elena Rybakina wins set 1 in the Naomi Osaka vs Elena Rybakina professional tennis match in the 2026 US Open Women Singles Round Of 16, then the market resolves to Yes.