Joseph Sirianni defeated Sergio Gaoni 6-3 7-6 in the Australia 1 Masters 4 round of 32 on hard. The result followed the form book — Joseph Sirianni came in leading the head-to-head 3–0. Joseph Sirianni extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-09-19 | Australia 3 Masters 3 | R32 | hard | Joseph Sirianni | 6-3 6-3 |
| 1998-09-19 | Australia 3 Masters 3 | R16 | hard | Joseph Sirianni | 6-2 6-3 |
| 1997-09-28 | Australia 3 Masters 3 | R32 | hard | Joseph Sirianni | 6-4 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.