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