Troy Hahn defeated Takahiro Terachi 7-6 6-2 in the Australia F2 round of 32 on hard. The upset overturned the form book — Takahiro Terachi came in leading the head-to-head 1–0. Troy Hahn claimed a first win over Takahiro Terachi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-29 | Japan F5 | R16 | hard | Takahiro Terachi | 7-6(3) 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.