Julien Cuaz defeated Guillaume Marx 6-2 2-6 7-5 in the France 1 Masters 3 round of 32 on clay. The upset overturned the form book — Guillaume Marx came in leading the head-to-head 3–0. Julien Cuaz claimed a first win over Guillaume Marx in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-06-14 | Italy F12 | R16 | clay | Guillaume Marx | 6-3 6-1 |
| 1996-09-07 | France 5 Masters 4 | R32 | hard | Guillaume Marx | 6-4 6-2 |
| 1996-07-20 | France 4 Masters 1 | QF | clay | Guillaume Marx | 6-3 6-4 |