Anne Kremer defeated Sina Haas 7-5 7-5 in the Zagreb 25K round of 32 on clay. The upset overturned the form book — Sina Haas came in leading the head-to-head 1–0. Anne Kremer claimed a first win over Sina Haas in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-08-05 | Hechingen 25K | Q16 | clay | Sina Haas | 6-1 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.