Doug Bohaboy defeated Atsuo Ogawa 6-1 7-6 in the Japan F7 round of 16 on hard. The upset overturned the form book — Atsuo Ogawa came in leading the head-to-head 1–0. Doug Bohaboy claimed a first win over Atsuo Ogawa in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-05-24 | Japan F4 | R32 | hard | Atsuo Ogawa | 7-5 3-6 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.