Rafael Serpa Guinazu defeated Federico Lusin 7-5 7-5 in the Argentina B Masters 4 round of 16 on clay. The result followed the form book — Rafael Serpa Guinazu came in leading the head-to-head 2–0. Rafael Serpa Guinazu extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1994-11-05 | Uruguay Paraguay Masters 3 | R32 | clay | Rafael Serpa Guinazu | 6-1 3-6 6-2 |
| 1994-07-16 | Argentina 2 Masters 3 | R32 | clay | Rafael Serpa Guinazu | 6-3 6-2 |