Joao Zwetsch defeated Claude Ngoran 6-4 7-6 in the Ecuador Peru Masters 4 semi-final on clay. The upset overturned the form book — Claude Ngoran came in leading the head-to-head 1–0. Joao Zwetsch claimed a first win over Claude Ngoran in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1996-01-13 | Central America Masters 3 | R16 | hard | Claude Ngoran | 6-2 6-0 |