8th Kansai Championship 1st round
Place: Osaka, Japan
Start: 2012-10-08, End: 2012-10-08
Rule: Yamaguchi, Games: 15
| Round 1 | ||||
|---|---|---|---|---|
| Black | Result | White | ||
 Hasegawa Kazuto | 2587.28 | 1 : 0 | 2171.51 | Koiso Shigemasa |
| Takahashi Roi | 2174.83 | 0 : 1 | 2472.96 | Iio Yoshihiro |
| Miyagawa Junzo | 2217.54 | 1 : 0 | 1993.18 | Kon Akira |
| Round 2 | ||||
| Black | Result | White | ||
| Hasegawa Kazuto | 2587.28 | 1 : 0 | 2174.83 | Takahashi Roi |
| Miyagawa Junzo | 2217.54 | 0 : 1 | 2472.96 | Iio Yoshihiro |
| Koiso Shigemasa | 2171.51 | 1 : 0 | 1993.18 | Kon Akira |
| Round 3 | ||||
| Black | Result | White | ||
| Hasegawa Kazuto | 2587.28 | 1 : 0 | 2472.96 | Iio Yoshihiro |
| Koiso Shigemasa | 2171.51 | 0 : 1 | 2217.54 | Miyagawa Junzo |
| Kon Akira | 1993.18 | 0 : 1 | 2174.83 | Takahashi Roi |
| Round 4 | ||||
| Black | Result | White | ||
| Hasegawa Kazuto | 2587.28 | 0 : 1 | 1993.18 | Kon Akira |
| Koiso Shigemasa | 2171.51 | 0 : 1 | 2472.96 | Iio Yoshihiro |
| Miyagawa Junzo | 2217.54 | 0 : 1 | 2174.83 | Takahashi Roi |
| Round 5 | ||||
| Black | Result | White | ||
| Hasegawa Kazuto | 2587.28 | 0 : 1 | 2217.54 | Miyagawa Junzo |
| Kon Akira | 1993.18 | 0 : 1 | 2472.96 | Iio Yoshihiro |
| Takahashi Roi | 2174.83 | 0 : 1 | 2171.51 | Koiso Shigemasa |