Timo Nieminen defeated Lauri Kiiski 6-2 6-3 in the Portugal 4 4 round of 32 on clay. Timo Nieminen extended the head-to-head to 4–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-08-18 | Finland F1 | R16 | clay | Timo Nieminen | 6-3 6-1 |
| 2007-08-20 | Finland F1 | QF | hard | Timo Nieminen | 6-7(3) 6-3 7-6(3) |
| 2006-06-19 | Finland F1 | QF | clay | Lauri Kiiski | 6-3 6-0 |
| 2005-06-20 | Finland F2 | R16 | clay | Lauri Kiiski | 6-4 6-3 |
| 2004-02-09 | Great Britain 1 1 | R32 | hard | Lauri Kiiski | 7-6(2) 6-7(6) 6-4 |
| 1999-10-30 | Israel 1 Masters 2 | R32 | hard | Timo Nieminen | 6-1 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.