Nadejda Vassileva defeated Elena Gantcheva 4-1 4-0 3-5 5-3 in the Sofia 10K round of 32 on clay. The upset overturned the form book — Elena Gantcheva came in leading the head-to-head 1–0. Nadejda Vassileva claimed a first win over Elena Gantcheva in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-06-04 | Ankara 10K | R32 | clay | Elena Gantcheva | 6-0 6-2 |