Maria Sakkari defeated Elise Mertens 2-6 6-4 6-2 in the Australian Open q64 on hard. The upset overturned the form book — Elise Mertens came in ranked #23. Maria Sakkari extended the head-to-head to 6–5.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-06-09 | s Hertogenbosch | R16 | grass | Elise Mertens | 6-3 6-0 |
| 2023-01-02 | United Cup | RR | hard | Maria Sakkari | 6-1 7-5 |
| 2022-02-07 | St. Petersburg | QF | hard | Maria Sakkari | 7-6 6-2 |
| 2021-05-31 | Roland Garros | R32 | clay | Maria Sakkari | 7-5 6-7 6-2 |
| 2019-10-22 | Zhuhai | RR | hard | Elise Mertens | 6-2 3-6 6-1 |
| 2019-04-29 | Rabat | QF | clay | Maria Sakkari | 6-4 7-6 |
| 2014-11-17 | New Delhi 50K | R16 | hard | Elise Mertens | 6-3 6-1 |
| 2014-11-03 | Sharm El Sheikh 25K | R32 | hard | Maria Sakkari | 7-5 7-6(4) |
| 2014-01-27 | Tinajo Lanzarote 10K | QF | hard | Elise Mertens | 6-2 6-3 |
| 2014-01-20 | Tinajo Lanzarote 10K | R16 | hard | Elise Mertens | 6-4 6-2 |
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
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