Raul Valdes defeated Hermes Gamonal 3-6 6-4 6-0 in the Chile 2 Masters 2 round of 16 on clay. The upset overturned the form book — Hermes Gamonal came in leading the head-to-head 1–0. Raul Valdes claimed a first win over Hermes Gamonal in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-05-03 | Chile 1 Masters 4 | R32 | clay | Hermes Gamonal | 6-3 7-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.