Orest Tereshchuk defeated Helder Lopes 4-6 7-5 7-6 in the Portugal 4 3 round of 32 on clay. The upset overturned the form book — Helder Lopes came in leading the head-to-head 1–0. Orest Tereshchuk claimed a first win over Helder Lopes in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-10-29 | Portugal 4 1 | R32 | clay | Helder Lopes | 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.