Guillaume Marx defeated Gianluca Gatto 3-6 6-4 6-2 in the Italy F5 round of 32 on clay. The result followed the form book — Guillaume Marx came in leading the head-to-head 1–0. Guillaume Marx extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-06-07 | Italy F11 | R16 | clay | Guillaume Marx | 6-1 6-1 |