Guillem Burniol defeated Maciej Dilaj 6-3 6-4 in the Poland F11 round of 16 on clay. The upset overturned the form book — Maciej Dilaj came in leading the head-to-head 1–0. Guillem Burniol claimed a first win over Maciej Dilaj in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-08-23 | Poland F4 | QF | clay | Maciej Dilaj | 4-6 7-5 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.