
Maria Sakkari defeated Naomi Osaka 6-3 7-6 in the Cincinnati round of 64 on hard. The upset overturned the form book — Naomi Osaka came in ranked #13, leading the head-to-head 3–2. Maria Sakkari narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-01-05 | United Cup | RR | hard | Maria Sakkari | 6-4 6-2 |
| 2021-03-22 | Miami | QF | hard | Maria Sakkari | 6-0 6-4 |
| 2020-01-06 | Brisbane | R32 | hard | Naomi Osaka | 6-2 6-7(4) 6-3 |
| 2019-06-17 | Birmingham | R32 | grass | Naomi Osaka | 6-1 4-6 6-3 |
| 2018-03-05 | Indian Wells | R16 | hard | Naomi Osaka | 6-1 5-7 6-1 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (200 vs 196). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Sakkari M.: 9 days rest · 3 matches (14d) · Osaka N.: 6 days rest · 1 match, 23 games (7d). Higher means fresher. About