Hector Moretti defeated Federico Dondo 6-2 6-3 in the Argentina F2 round of 32 on clay. The upset overturned the form book — Federico Dondo came in leading the head-to-head 2–1, but Hector Moretti had been the form player, winning 5 of their last 10 on clay. Hector Moretti narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-03-15 | Italy F1 | R32 | clay | Federico Dondo | 7-6 7-6 |
| 1993-11-06 | Uruguay Paraguay Masters 4 | R32 | clay | Federico Dondo | 6-2 6-3 |
| 1991-11-18 | Arg Uru Par Masters 3 | R32 | clay | Hector Moretti | 3-6 7-5 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.