Margalita Chakhnashvili defeated Natalia Gussoni 6-3 7-6 in the Biella 100K round of 32 on clay. The upset overturned the form book — Natalia Gussoni came in leading the head-to-head 1–0. Margalita Chakhnashvili claimed a first win over Natalia Gussoni in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-06-27 | Mont de Marsan 25K | SF | clay | Natalia Gussoni | 6-1 6-1 |