Jan Vacek defeated Sebastian Jaeger 6-4 6-1 in the Germany F12 qualifying round on hard. The upset overturned the form book — Sebastian Jaeger came in leading the head-to-head 1–0. Jan Vacek claimed a first win over Sebastian Jaeger in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-05-01 | Germany F2 | R32 | clay | Sebastian Jaeger | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.