Diego Veronelli defeated Paulo Carvallo 6-1 7-6 in the Peru F3 round of 16 on clay. The upset overturned the form book — Paulo Carvallo came in leading the head-to-head 3–1, but Diego Veronelli had been the form player, winning 5 of their last 10 on clay. Diego Veronelli narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-05-17 | Chile F2 | QF | clay | Paulo Carvallo | 3-6 6-3 7-6 |
| 1998-10-19 | Argentina F4 | R32 | clay | Paulo Carvallo | 3-6 6-1 6-2 |
| 1998-10-05 | Bolivia F3 | F | clay | Diego Veronelli | 6-2 6-3 |
| 1997-09-06 | Bolivia Paraguay Masters 2 | R32 | clay | Paulo Carvallo | 7-6 7-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.