Markus Wislsperger defeated Rene Nicklisch 7-6 3-6 7-5 in the Mexico 1 Masters 3 semi-final on hard. The upset overturned the form book — Rene Nicklisch came in leading the head-to-head 1–0. Markus Wislsperger claimed a first win over Rene Nicklisch in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-03-07 | Mexico 1 Masters 4 | R32 | hard | Rene Nicklisch | 6-4 6-0 |