Fredrik Giers defeated Jan Krejci 6-2 6-0 in the USA F21 round of 32 on hard. The upset overturned the form book — Jan Krejci came in leading the head-to-head 1–0. Fredrik Giers claimed a first win over Jan Krejci in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-10-16 | USA 4 Masters 1 | R32 | hard | Jan Krejci | 7-6 4-6 6-4 |