Lenka Jurikova defeated Sina Haas 2-6 6-2 6-2 in the Lenzerheide 25K round of 32 on clay. The upset overturned the form book — Sina Haas came in leading the head-to-head 1–0. Lenka Jurikova claimed a first win over Sina Haas in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-04-15 | Sibenik 10K | R16 | clay | Sina Haas | 3-6 6-1 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.