Joseph Sirianni defeated Sadik Kadir 7-6 6-1 in the Australia 2 3 qualifying round on hard. The upset overturned the form book — Sadik Kadir came in leading the head-to-head 2–0, but Joseph Sirianni had been the form player, winning 3 of their last 6 on hard. Joseph Sirianni claimed a first win over Sadik Kadir in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-10-03 | Australia F7 | QF | hard | Sadik Kadir | 6-2 6-7(0) 6-2 |
| 2004-02-02 | Australia 1 1 | QF | hard | Sadik Kadir | 7-6(6) 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.