Orest Tereshchuk defeated Lauri Kiiski 6-4 6-2 in the Portugal 4 3 qualifying round on clay. Orest Tereshchuk extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-01-20 | India F3 | QF | clay | Orest Tereshchuk | 6-0 7-5 |
| 2000-10-16 | Finland F1 | R32 | hard | Lauri Kiiski | 6-2 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.