Lars Zimmermann defeated Jean Claude Scherrer 7-6 0-6 6-2 in the Italy F1 round of 16 on clay. The upset overturned the form book — Jean Claude Scherrer came in leading the head-to-head 1–0. Lars Zimmermann claimed a first win over Jean Claude Scherrer in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-05-08 | West Africa Masters 4 | QF | hard | Jean Claude Scherrer | 7-5 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.