Sergei Samoseiko defeated Alexey Gavrilov 6-3 6-3 in the Belarus F1 round of 16 on carpet. The upset overturned the form book — Alexey Gavrilov came in leading the head-to-head 1–0. Sergei Samoseiko claimed a first win over Alexey Gavrilov in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-18 | Russia F3 | R32 | carpet | Alexey Gavrilov | 6-0 6-3 |