Gustavo Diaz defeated Oscar Rodriguez Arg 6-3 1-6 6-1 in the Argentina 1 Masters 4 qualifying round on clay. The result followed the form book — Gustavo Diaz came in leading the head-to-head 1–0. Gustavo Diaz extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1994-04-16 | Argentina 1 Masters 1 | R32 | clay | Gustavo Diaz | 6-4 6-7 6-4 |