Federico Dondo defeated Franco Squillari 7-6 7-6 in the Argentina 3 Masters 4 round of 16 on clay. The upset overturned the form book — Franco Squillari came in leading the head-to-head 2–0. Federico Dondo claimed a first win over Franco Squillari in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1995-09-02 | Argentina 2 Masters 3 | R32 | clay | Franco Squillari | 6-0 3-6 6-4 |
| 1991-06-17 | Brazil 4 Masters 3 | R32 | clay | Franco Squillari | 6-0 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.