Malcolm Allen defeated Jose Ayala 6-1 6-1 in the Canada Masters 4 round of 16 on clay. The upset overturned the form book — Jose Ayala came in leading the head-to-head 1–0. Malcolm Allen claimed a first win over Jose Ayala in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-06-08 | Canada Masters 3 | QF | clay | Jose Ayala | 6-3 5-7 6-4 |