Rafael Serpa Guinazu defeated Gerardo Mirad 6-3 2-6 6-4 in the Argentina 1 Masters 2 round of 32 on clay. The upset overturned the form book — Gerardo Mirad came in leading the head-to-head 3–0. Rafael Serpa Guinazu claimed a first win over Gerardo Mirad in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1994-08-13 | Argentina 3 Masters 3 | R16 | clay | Gerardo Mirad | 2-6 6-4 6-2 |
| 1993-10-09 | Chile 2 Masters 2 | R32 | clay | Gerardo Mirad | 7-5 6-2 |
| 1993-04-10 | Argentina 1 Masters 4 | R16 | clay | Gerardo Mirad | 6-0 6-1 |