TOTAL VOLUME:
$134.2b
24H VOL:
$129,159,707
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,442,132,418
404,744
Markets across
30,489
events
MATCHED EVENTS:
2,691
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 12, 2:02 AM EST
Polymarket
This market tracks who will win the first set in the tennis match between Naomi Osaka and Elena Rybakina at the National Bank Open. On Polymarket, the current probability for Osaka to win Set 1 is 100%. The result will be settled using official scores from the WTA website. Watch for the match outcome on August 18, 2026, which will determine the resolution of this market.
This market refers to the tennis match between Naomi Osaka and Elena Rybakina in the National Bank Open, originally scheduled for August 11, 2026 at 10:00AM ET. This market will resolve to 'Naomi Osaka' if Naomi Osaka advances against Elena Rybakina. This market will resolve to 'Elena Rybakina' if Elena Rybakina advances against Naomi Osaka. 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 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 resolves around Aug 18, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result aligns with official match reports and widely accepted sports data sources, ensuring transparency for all participants on Polymarket.