Marcus Sarstrand defeated Per Thornadtsson 6-4 6-1 in the Sweden F2 round of 16 on hard. The upset overturned the form book — Per Thornadtsson came in leading the head-to-head 3–1. Marcus Sarstrand narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-06-08 | Finland F1 | QF | clay | Marcus Sarstrand | 7-5 6-3 |
| 1998-01-03 | Italy 1 Masters 3 | R16 | carpet | Per Thornadtsson | 6-1 6-2 |
| 1997-09-08 | Sweden Masters 2 | R16 | carpet | Per Thornadtsson | 4-6 6-1 6-2 |
| 1996-09-06 | Sweden 2 Masters 4 | R32 | carpet | Per Thornadtsson | 6-3 7-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.