Sebastien Lareau defeated Miguel Merz 6-2 6-2 in the Canada Masters 1 qualifying round on clay. Sebastien Lareau extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-06-08 | Canada Masters 2 | R32 | clay | Miguel Merz | 7-6 6-3 |
| 1991-06-08 | Canada Masters 4 | SF | clay | Sebastien Lareau | 6-4 7-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.