Ana Jovanovic defeated Oksana Kalashnikova 6-1 6-3 in the Grado 25K round of 16 on clay. The upset overturned the form book — Oksana Kalashnikova came in leading the head-to-head 1–0. Ana Jovanovic claimed a first win over Oksana Kalashnikova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-03-22 | Moscow 25K | R32 | hard | Oksana Kalashnikova | 6-3 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.