Katja Markus advanced when Carla Markus retired 7-6 1-0 in the W50 Pilar 1 round of 64. Katja Markus claimed a first win over Carla Markus in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-08-14 | W25 Erwitte | Q32 | clay | Carla Markus | 6-2 6-3 |
| 2023-02-28 | W25 Tucuman | R64 | clay | Carla Markus | 6-1 7-5 |
Averages over each player's completed matches in the selected window (40 vs 140). 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