Luka Gregorc defeated Michael Kohlmann 6-2 6-4 in the San Jose q16 on hard. The upset overturned the form book — Michael Kohlmann came in leading the head-to-head 1–0. Luka Gregorc claimed a first win over Michael Kohlmann in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-09-26 | Bangkok | Q16 | hard | Michael Kohlmann | 6-3 6-4 |