Julien Cuaz defeated Guillem Burniol 4-6 7-5 6-0 in the Spain F8 qualifying round on clay. The upset overturned the form book — Guillem Burniol came in leading the head-to-head 1–0. Julien Cuaz claimed a first win over Guillem Burniol in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-08-25 | Switzerland 2 1 | SF | clay | Guillem Burniol | 6-3 3-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.