Antonia Lottner defeated Anna Kalinskaya 6-3 6-3 in the Roland Garros q128 on clay. The upset overturned the form book — Anna Kalinskaya came in leading the head-to-head 2–1. Antonia Lottner narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-05-25 | Roland Garros | Q128 | clay | Antonia Lottner | 7-5 6-4 |
| 2019-06-27 | Wimbledon | Q32 | grass | Anna Kalinskaya | 6-3 6-3 |
| 2019-01-11 | Australian Open | Q32 | hard | Anna Kalinskaya | 7-6(3) 6-3 |
Averages over each player's completed matches in the selected window (112 vs 200). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About