Paulo Carvallo defeated Luis Horna 6-4 6-0 in the Ecuador Masters 1 round of 32 on clay. The upset overturned the form book — Luis Horna came in leading the head-to-head 1–0. Paulo Carvallo claimed a first win over Luis Horna in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-09-07 | Peru F2 | QF | clay | Luis Horna | 6-3 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.