Federico Dondo defeated Sergio Roitman 6-2 6-1 in the Argentina F1 qualifying round on clay. The upset overturned the form book — Sergio Roitman came in leading the head-to-head 1–0, but Federico Dondo had been the form player, winning 2 of their last 6 on clay. Federico Dondo claimed a first win over Sergio Roitman in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-07-20 | Brazil F1 | R32 | clay | Sergio Roitman | 3-6 6-4 7-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.