Atsuhiko Okamoto
| Date | Contest | Band | Position | Draw |
|---|---|---|---|---|
| 23 Oct 2010 |
Australasian Open Championship
|
Osaka Harmony Brass Japan
|
10 | |
| 16 Apr 2006 |
Australian Championships (A Grade)
|
Osaka Harmony Brass
|
12 | |
| 15 Apr 2006 |
Australian Championships (A Grade Parade of Bands)
|
Osaka Harmony Brass (Japan)
|
16 | 1 |
| 21 Apr 2003 |
Australian Championships (A Grade)
|
Osaka Harmony Brass (Japan)
|
6 | 12 |
| 19 Apr 2003 |
Australian Championships (A Grade Parade of Bands)
|
Osaka Harmony Brass (Japan)
|
15 | 12 |