Michel Kratochvil defeated Jerome Loustalot 7-6 6-3 in the Switzerland 1 Masters 4 semi-final on clay. The upset overturned the form book — Jerome Loustalot came in leading the head-to-head 2–0. Michel Kratochvil claimed a first win over Jerome Loustalot in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-05 | Switzerland 1 Masters 1 | QF | clay | Jerome Loustalot | 6-1 6-4 |
| 1998-06-15 | Finland F2 | R16 | clay | Jerome Loustalot | 7-5 7-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.