National Bank Open: Elise Mertens vs Naomi Osaka

Prediction markets put the probability at 30%: National Bank Open: Elise Mertens vs Naomi Osaka. Currently, markets see this as unlikely (30% YES). Sky Sports Tennis National Bank Open presented by Rogers 2026 E.

What’s Happening

The third-round clash between Elise Mertens and Naomi Osaka at the National Bank Open presented by Rogers is currently underway on Friday, August 7, 2026, with the match scheduled for the Grandstand court not before 5 p.m. local time in Toronto. The WTA 1000 hardcourt event has seen Osaka enter as the favorite in this matchup, holding a 70% implied probability of advancing according to the current market, while Mertens sits at 30%. This marks their second meeting of the season, following Osaka's straight-sets victory over Mertens in the Bad Homburg quarterfinals on June 23, 2026, where the Japanese star hit seven aces and won 86% of her first-serve points to extend her career head-to-head lead to 5-3 [WTA Tennis, Jun 23].

The winner of this national bank open: elise mertens vs naomi osaka match will face Canada's Leylah Fernandez in the fourth round, after Fernandez upset top-10 player Mirra Andreeva earlier on Friday to become the last remaining Canadian in the tournament. Fernandez improved to 1-4 against top-10 players with that victory, setting up a significant opportunity for either Mertens or Osaka to capitalize on a favorable draw [Toronto Star, Aug 7]. The match is being broadcast live on Sky Sports, with the WTA Tour featuring this as a marquee third-round contest amid a packed Friday schedule that also includes Taylor Townsend versus Belinda Bencic and Maya Joint versus Liudmila Samsonova [Sportsnet, Aug 7].

Osaka's recent form has been building toward this moment, as her Bad Homburg run marked her first quarterfinal appearance of the 2026 season, powered by a dominant service game that carried her through tight moments against Mertens. The former world No. 1 has shown resilience in this head-to-head, but Mertens has proven capable of clawing back from deficits, as evidenced by her three-game comeback in the first set of their June meeting before Osaka steadied herself to close out the win in just over an hour [Just Women's Sports, Jun 23]. With the national bank open: elise mertens vs naomi osaka match currently live, the outcome will determine who advances to face Fernandez in the fourth round, with the winner gaining a clear path deeper into this WTA 1000 event [Sky Sports, Aug 7].

Traded on Polymarket — $100K Volume

Polymarket prices this at 30c YES with $100K in volume. Moderate liquidity — use limit orders for positions above $1K to avoid moving the price.