Federico Dondo defeated Nelson Aerts 7-6 6-3 in the Mexico 1 Masters 2 round of 16 on hard. The upset overturned the form book — Nelson Aerts came in leading the head-to-head 2–0. Federico Dondo claimed a first win over Nelson Aerts in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1995-04-29 | Brazil 1 Masters 3 | R32 | hard | Nelson Aerts | 6-2 6-0 |
| 1992-05-11 | Brazil 3 Masters 3 | R16 | clay | Nelson Aerts | 6-3 6-2 |