Joost Wijnhoud defeated David Ison 7-6 6-4 in the France 1 Masters 3 qualifying round on carpet. The upset overturned the form book — David Ison came in leading the head-to-head 1–0. Joost Wijnhoud claimed a first win over David Ison in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-07-22 | Israel 1 Masters 1 | R32 | hard | David Ison | 7-5 6-7 6-3 |