Marcos Leite defeated Cristiano Testa 6-1 6-4 in the Ecuador Masters 3 round of 32 on clay. The upset overturned the form book — Cristiano Testa came in leading the head-to-head 1–0. Marcos Leite claimed a first win over Cristiano Testa in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-07-15 | Brazil 5 Masters 1 | R32 | clay | Cristiano Testa | 6-3 6-3 |