Rebecca Peterson advanced when Ajla Tomljanovic retired 4-6 6-2 2-1 in the Belgrade round of 16. Rebecca Peterson claimed a first win over Ajla Tomljanovic in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-04-29 | Rabat | QF | clay | Ajla Tomljanovic | 6-2 6-4 |
| 2018-06-18 | Mallorca | R16 | grass | Ajla Tomljanovic | 6-3 6-3 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.