Olga Lazarchuk defeated Marianna Yuferova 6-1 6-1 in the Lviv 10K qualifying round on clay. The upset overturned the form book — Marianna Yuferova came in leading the head-to-head 1–0. Olga Lazarchuk claimed a first win over Marianna Yuferova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-05-20 | Kiev 10K | SF | clay | Marianna Yuferova | 6-2 2-6 6-2 |