Jedrzej Zarski defeated Guillem Burniol 7-5 6-1 in the Lithuania F2 round of 16 on clay. The upset overturned the form book — Guillem Burniol came in leading the head-to-head 1–0. Jedrzej Zarski claimed a first win over Guillem Burniol in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-08-23 | Poland F4 | R32 | clay | Guillem Burniol | 7-6(5) 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.