Tetsuya Chaen defeated Guilherme Ochiai 0-6 7-5 7-5 in the Japan F5 round of 32 on hard. The upset overturned the form book — Guilherme Ochiai came in leading the head-to-head 1–0. Tetsuya Chaen claimed a first win over Guilherme Ochiai in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-06-18 | Japan F7 | R16 | clay | Guilherme Ochiai | 7-6(3) 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.