Miguel Merz defeated Mark Greenan 3-6 6-3 6-4 in the Canada Masters 2 qualifying round on clay. Miguel Merz extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-06-08 | Canada Masters 4 | R16 | clay | Miguel Merz | 6-4 6-4 |
| 1991-04-28 | Caribbean 2 Masters 4 | QF | hard | Mark Greenan | 6-3 6-4 |