Pedro Nieto defeated Helder Lopes 6-4 6-3 in the Portugal 4 Masters 1 round of 16 on carpet. The result followed the form book — Pedro Nieto came in leading the head-to-head 1–0. Pedro Nieto extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-05-01 | Portugal 1 Masters 4 | R32 | clay | Pedro Nieto | 4-6 6-4 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.