Oscar Bustos defeated Hermes Gamonal 6-0 3-6 6-3 in the Chile 1 Masters 4 round of 16 on clay. The result followed the form book — Oscar Bustos came in leading the head-to-head 1–0. Oscar Bustos extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-05-17 | Chile F2 | QF | clay | Oscar Bustos | 6-4 1-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.