Alejandro Aramburu defeated Tim Donovan 6-3 6-2 in the USA 1 Masters 4 round of 32 on clay. The result followed the form book — Alejandro Aramburu came in leading the head-to-head 1–0. Alejandro Aramburu extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-03-22 | USA 1 Masters 3 | R16 | clay | Alejandro Aramburu | 6-0 6-3 |