Naomi Osaka defeated Elise Mertens 6-3, 3-6, 7-5 in the R32 of the US Open 2026.
The first serve carried the decider. Osaka won 81 percent of her first-serve points in the third set against 61 for Mertens, and hit 18 winners to nine there, the cushion she needed after being broken for 3-2 and breaking straight back in game 8 for 4-4. Mertens saved three match points before the 13th seed closed it out at two hours and 38 minutes, a month after conceding just three games to Osaka at the Canadian Open. She reaches the round of 16 at the US Open.
Naomi Osaka: 9 aces, 39 winners, 58% first serves, 2 double faults, 4/16 break points. Elise Mertens: 3 aces, 22 winners, 63% first serves, 5 double faults, 3/11 break points.
Profiles: Naomi Osaka · Elise Mertens — US Open 2026
Naomi Osaka and Elise Mertens have met 5 times, with Naomi Osaka leading the head-to-head 3–2.
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