Masa Zec Peskiric defeated Ekaterina Ivanova 6-3 3-6 6-0 in the Maribor 25K round of 16 on clay. The upset overturned the form book — Ekaterina Ivanova came in leading the head-to-head 1–0. Masa Zec Peskiric claimed a first win over Ekaterina Ivanova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-04-06 | Marbella | R32 | clay | Ekaterina Ivanova | 6-0 6-4 |