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Elise Mertens v Naomi Osaka: stats compared | Lineball
Osaka wins on titles. Mertens’s case rests on return points won %, but it isn’t enough to swing it. WTA Tour career: Mertens 551 matches, Osaka 389 matches.
Osaka has 7 titles (one every 25 matches) to Mertens’ 10 titles (one every 33.3 matches).
Osaka averages 5.8 aces a match to Mertens’ 3.5 (63% more).
Osaka has the better first-serve points won %: 71.8 to Mertens’s 67.
Longevity: Mertens has 551 matches across 11 seasons, Osaka 389 in 12 — the averages matter more than the totals here.
Not every stat was recorded for every match (titles, grand slam titles): those averages use only the games that logged them.
Built only from games in our stats database. A read of the numbers, not a tip.
Tale of the tape
Per game. Totals and best single game underneath.
0.010 total · best 1Titlesper game0.07 total · best 1
–Grand Slam titlesper game0.04 total · best 1
59.0First serve in %57.4
67.0First-serve points won %71.8
56.2Break points saved %58.6
45.6Return points won %42.5
3.51,950 total · best 14
Head to head
310 matches since 20177
Hard · 8 matchesMertens 3Osaka 5
Grass · 2 matchesMertens 0Osaka 2
Grand Slams · 1 matchMertens 0Osaka 1
Last meetings
23 Aug 2026 · US Open · Round of 32 · HardOsaka won 6-3 3-6 7-5
2 Aug 2026 · Toronto · Round of 32 · HardOsaka won 6-1 6-2
21 June 2026 · Bad Homburg · Round of 16 · GrassOsaka won 6-3 6-3
5 Aug 2024 · Toronto · Round of 32 · HardMertens won 6-3 6-4
10 June 2024 · s Hertogenbosch · Round of 32 · GrassOsaka won 6-2 6-4
6 Mar 2024 · Indian Wells · Round of 32 · HardMertens won 7-5 6-4
22 Mar 2021 · Miami · Round of 16 · HardOsaka won 6-3 6-3
24 Aug 2020 · Cincinnati · Semifinal · HardOsaka won 6-2 7-6(5)
16 Sept 2019 · Osaka · Semifinal · Hard
Last 10 games
Titles, oldest to newest.
Mertens––––––––––
Osaka––––––––––
Acesper game
5.82,230 total · best 18
11.56,319 total · best 21Games wonper game11.74,535 total · best 19
46.8Break points converted %46.3
59.0Sets won %62.4
54.1Games won %55.0
0.017 total · best 1Finalsper game0.013 total · best 1
1.4746 total · best 2Sets wonper game1.4547 total · best 2
0.9518 total · best 2Sets lostper game · lower is better0.9329 total · best 2
9.75,369 total · best 23Games lostper game · lower is better9.63,714 total · best 19
0.2123 total · best 3Tiebreaksper game0.3100 total · best 2
Osaka won 6-4 6-1
25 Sept 2017 · Wuhan · Round of 64 · HardMertens won 6-4 1-6 6-4
