David Ison defeated Laurence Matthews 6-4 7-5 in the Ireland Masters 2 round of 32 on carpet. The upset overturned the form book — Laurence Matthews came in leading the head-to-head 1–0. David Ison claimed a first win over Laurence Matthews in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-01-13 | Portugal 1 Masters 4 | R32 | hard | Laurence Matthews | 7-6 6-3 |