Francisco Ruiz defeated Hermes Gamonal 6-2 6-2 in the Ecuador Masters 2 round of 16 on clay. The upset overturned the form book — Hermes Gamonal came in leading the head-to-head 3–0. Francisco Ruiz claimed a first win over Hermes Gamonal in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-11-23 | Chile F2 | R16 | clay | Hermes Gamonal | 6-4 6-3 |
| 1998-04-04 | Chile 1 Masters 4 | QF | clay | Hermes Gamonal | 6-4 7-5 |
| 1995-09-30 | Chile Masters 4 | R16 | clay | Hermes Gamonal | 4-6 6-3 2-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.