Tuomas Ketola defeated Joao Cunha Silva 6-4 6-3 in the Portugal 4 Masters 4 final on carpet. The upset overturned the form book — Joao Cunha Silva came in leading the head-to-head 2–0. Tuomas Ketola claimed a first win over Joao Cunha Silva in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-09-27 | Portugal 4 Masters 2 | SF | carpet | Joao Cunha Silva | 7-6 6-3 |
| 1996-01-05 | Portugal 1 Masters 1 | QF | clay | Joao Cunha Silva | 7-5 6-7 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.