Christopher Kas defeated Jerome Haehnel 7-6 7-5 in the Austria F1 qualifying round on clay. The upset overturned the form book — Jerome Haehnel came in leading the head-to-head 1–0. Christopher Kas claimed a first win over Jerome Haehnel in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-10-09 | France F21 | QF | carpet | Jerome Haehnel | 7-6(4) 6-7(6) 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.