Chuck Swayne defeated Warren Brooks 6-2 6-1 in the USA 2 Masters 1 round of 64 on hard. The upset overturned the form book — Warren Brooks came in leading the head-to-head 1–0. Chuck Swayne claimed a first win over Warren Brooks in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-02-16 | Central America Masters 4 | R32 | hard | Warren Brooks | 7-6 6-3 |