| Kofu ITF, Q-1R, 17.03.2012 |
| |
Bando - Yamamoto |
1:0 |
| Miyazaki ITF, R16, 14.03.2012 |
| |
Ayukawa - Yamamoto |
2:1 |
| Miyazaki ITF, 1R, 13.03.2012 |
| |
Yamamoto - Watanabe |
2:0 |
| Toyota ITF, Q-1R, 19.11.2011 |
| |
Kuwata - Yamamoto |
2:0 |
| Hamanako ITF, Q-R16, 24.10.2011 |
| |
Yamasoto - Yamamoto |
2:0 |
| Hamanako ITF, Q-1R, 23.10.2011 |
| |
Yamamoto - Sugano |
2:0 |
| Makinohara ITF, Q-R16, 17.10.2011 |
| |
Ito - Yamamoto |
2:0 |
| Makinohara ITF, Q-1R, 16.10.2011 |
| |
Yamamoto - Nakagawa |
2:0 |
| Kofu ITF, Q-R16, 02.10.2011 |
| |
Yamasoto - Yamamoto |
2:0 |
| Kofu ITF, Q-1R, 01.10.2011 |
| |
Yamamoto - Sensui |
2:1 |