Ali Hamadeh defeated Mark Thompson 6-3 6-4 in the Canada F2 round of 32 on hard. The upset overturned the form book — Mark Thompson came in leading the head-to-head 1–0. Ali Hamadeh claimed a first win over Mark Thompson in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-03-01 | Australia 1 Masters 1 | R32 | hard | Mark Thompson | 7-5 6-3 |