Ajla Tomljanovic defeated Rebecca Peterson 6-3 6-3 in the Mallorca round of 16 on grass. Ajla Tomljanovic extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-05-17 | Belgrade | R16 | clay | Rebecca Peterson | 4-6 6-2 2-1 RET |
| 2019-04-29 | Rabat | QF | clay | Ajla Tomljanovic | 6-2 6-4 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.