Claude Ngoran defeated Joao Zwetsch 6-2 6-0 in the Central America Masters 3 round of 16 on hard. The upset overturned the form book — Joao Zwetsch came in leading the head-to-head 1–0. Claude Ngoran claimed a first win over Joao Zwetsch in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1994-08-13 | Ecuador Peru Masters 4 | SF | clay | Joao Zwetsch | 6-4 7-6 |