Steve Herdoiza defeated Brian Gyetko 6-3 7-6 in the Canada Masters 2 round of 32 on carpet. The upset overturned the form book — Brian Gyetko came in leading the head-to-head 3–0. Steve Herdoiza claimed a first win over Brian Gyetko in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-09-12 | Great Britain 3 Masters 2 | QF | hard | Brian Gyetko | 6-3 3-6 6-2 |
| 1992-10-12 | Canada Masters 1 | R16 | carpet | Brian Gyetko | 7-6 6-1 |
| 1992-10-12 | Canada Masters 3 | F | carpet | Brian Gyetko | 6-2 3-6 6-4 |