Andrew Kratzmann defeated Trevor Kronemann 6-4 6-3 in the Australia 1 Masters 1 qualifying round on carpet. The upset overturned the form book — Trevor Kronemann came in leading the head-to-head 1–0. Andrew Kratzmann claimed a first win over Trevor Kronemann in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-02-10 | Australia 1 Masters 4 | R16 | carpet | Trevor Kronemann | 6-2 6-3 |