Jean Claude Scherrer defeated Tony Parun P991 6-1 6-3 in the Switzerland 2 Masters 1 qualifying round on carpet. The upset overturned the form book — Tony Parun P991 came in leading the head-to-head 1–0. Jean Claude Scherrer claimed a first win over Tony Parun P991 in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-10-16 | Switzerland 2 Masters 2 | R16 | carpet | Tony Parun P991 | 6-4 7-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.