Takahiro Terachi defeated Troy Hahn 7-6 6-1 in the Japan F5 round of 16 on hard. The upset overturned the form book — Troy Hahn came in leading the head-to-head 1–0, but Takahiro Terachi had been the form player, winning 2 of their last 6 on hard. Takahiro Terachi claimed a first win over Troy Hahn in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-02-19 | Australia F2 | R32 | hard | Troy Hahn | 7-6(2) 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.