Sebastian Swierk defeated Luke Ronald Odonnell 7-5 4-6 7-5 in the USA F8 round of 16 on hard. Sebastian Swierk extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-11-25 | Australia F4 | R32 | grass | Luke Ronald Odonnell | 7-6 6-7 6-4 |
| 1998-05-10 | Australia 2 Masters 2 | QF | hard | Sebastian Swierk | 6-0 7-6 |