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.
National Bank Open: Naomi Osaka vs Elena Rybakina
WTA
Elena Rybakina
0-0
–
vs
12/08 00:30
–
Naomi Osaka
0-0
Game context
Elena Rybakina enters this National Bank Open quarterfinal with strong momentum after capturing the Australian Open and Stuttgart titles en route to a 34-11 record and world No. 2 ranking in 2026, while Naomi Osaka has extended her hard-court resurgence with straight-sets wins over Mertens and Fernandez to reach her first QF here since 2024. The matchup marks their first career meeting on the preferred hard-court surface where Osaka historically excels but Rybakina has posted deep runs in recent Canadian swings. Rybakina's serve dominance and recent title pedigree shape trader consensus around her slight edge, tempered by Osaka's proven big-match experience and fresh legs after a bye. No major injuries or roster changes have altered the field.
Moneyline
$99.9K Vol.Match Completed
1st Set Winner
1st Set Total
$36 Vol.National Bank Open: Naomi Osaka vs Elena Rybakina Set 1 O/U 8.5
National Bank Open: Naomi Osaka vs Elena Rybakina Set 1 O/U 9.5
National Bank Open: Naomi Osaka vs Elena Rybakina Set 1 O/U 10.5
Total Games
$236 Vol.National Bank Open: Naomi Osaka vs Elena Rybakina Match O/U 21.5
National Bank Open: Naomi Osaka vs Elena Rybakina Match O/U 22.5
National Bank Open: Naomi Osaka vs Elena Rybakina Match O/U 23.5
Set Winner
Set Total
$32 Vol.National Bank Open: Naomi Osaka vs Elena Rybakina Set 2 O/U 8.5
National Bank Open: Naomi Osaka vs Elena Rybakina Total Sets: O/U 2.5
National Bank Open: Naomi Osaka vs Elena Rybakina Set 2 O/U 9.5
National Bank Open: Naomi Osaka vs Elena Rybakina Set 2 O/U 10.5
Set Handicap
$330 Vol. Resolution Source: www.wtatennis.com
Odds & FAQ
What are the current odds for National Bank Open: Naomi Osaka vs Elena Rybakina?
National Bank Open: Naomi Osaka vs Elena Rybakina Set 1 O/U 8.5 leads the field at 79%, with National Bank Open: Naomi Osaka vs Elena Rybakina Match O/U 21.5 next at 60%. A solid favorite - though every trade can reshuffle the board.
What do traders predict for National Bank Open: Naomi Osaka vs Elena Rybakina?
The market makes National Bank Open: Naomi Osaka vs Elena Rybakina Set 1 O/U 8.5 the favorite at 79%. Implied probabilities come from real positions, and they move as traders digest new information.
When does the National Bank Open: Naomi Osaka vs Elena Rybakina market resolve?
Mark 18 Aug 2026 (7 days left): that's when this market is due to resolve, following Polymarket's published criteria once the result is verified.
How much money is trading on National Bank Open: Naomi Osaka vs Elena Rybakina?
Total turnover stands at $3.2M. Volume shows conviction: these odds are backed by actual positions, not polls.
How can I trade National Bank Open: Naomi Osaka vs Elena Rybakina on Polymarket?
You can watch the odds move here in real time and trade the market directly on Polymarket. As always, prediction trading carries real risk.
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