Alina Wessel defeated Diana Isaeva 5-7 6-3 6-2 in the Izmir 10K round of 32 on clay. The upset overturned the form book — Diana Isaeva came in leading the head-to-head 2–0. Alina Wessel claimed a first win over Diana Isaeva in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-03-28 | Astana 10K | R32 | hard | Diana Isaeva | 6-1 2-6 6-4 |
| 2010-10-18 | Akko 10K | R16 | hard | Diana Isaeva | 6-2 6-4 |