Sergei Pozdnev defeated Guillem Burniol 6-3 6-2 in the Spain F9 round of 32 on clay. The upset overturned the form book — Guillem Burniol came in leading the head-to-head 1–0. Sergei Pozdnev claimed a first win over Guillem Burniol in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-11-15 | Tunisia F4 | R32 | hard | Guillem Burniol | 6-4 1-6 7-6(4) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.