【Full Leaderboard】 Update 05/20 15:10
22nd Japan Senior Open Golf Championship 2012
| ROUND 4 | @：Amateur player |
| POS | Player | Score | Rounds | Total | ||||||
| R1 | R2 | R3 | R4 | |||||||
| - | @ Hiroshi Wada | +13 | 79 | 78 | - | - | - | |||
| - | Kazushige Shida | +13 | 74 | 83 | - | - | - | |||
| - | Seiji Ebihara | +13 | 79 | 78 | - | - | - | |||
| - | David Ishii | +13 | 83 | 74 | - | - | - | |||
| - | Katsuji Hasegawa | +14 | 73 | 85 | - | - | - | |||
| - | Ian Woosnam | +14 | 79 | 79 | - | - | - | |||
| - | Hitoshi Kato | +14 | 77 | 81 | - | - | - | |||
| - | @ Yoshinari Kanebayashi | +14 | 78 | 80 | - | - | - | |||
| - | @ Toshikazu Niwa | +14 | 82 | 76 | - | - | - | |||
| - | Hajime Meshiai | +14 | 77 | 81 | - | - | - | |||
| - | @ Hironori Morita | +14 | 81 | 77 | - | - | - | |||
| - | Yuji Takagi | +14 | 83 | 75 | - | - | - | |||
| - | Hikaru Emoto | +15 | 79 | 80 | - | - | - | |||
| - | Toshio Shimamura | +15 | 80 | 79 | - | - | - | |||
| - | Tatsuya Kihara | +15 | 79 | 80 | - | - | - | |||
| - | Jong-Duck Kim | +15 | 77 | 82 | - | - | - | |||
| - | Toshizo Hashino | +15 | 83 | 76 | - | - | - | |||
| - | Koji Okuno | +16 | 77 | 83 | - | - | - | |||
| - | Yasumasa Oikubo | +16 | 83 | 77 | - | - | - | |||
| - | @ Toshiki Sakiyama | +16 | 80 | 80 | - | - | - | |||
| - | Koichi Takabe | +16 | 77 | 83 | - | - | - | |||
| - | Shuichi Sano | +16 | 79 | 81 | - | - | - | |||
| - | Misao Yamamoto | +16 | 82 | 78 | - | - | - | |||
| - | Hisao Yamazaki | +16 | 80 | 80 | - | - | - | |||
| - | Tsunemi Nakajima | +16 | 81 | 79 | - | - | - | |||
| - | Tomohiro Maruyama | +17 | 80 | 81 | - | - | - | |||
| - | Norikazu Kawakami | +17 | 78 | 83 | - | - | - | |||
| - | Yasuyuki Ishii | +18 | 80 | 82 | - | - | - | |||
| - | Joji Fujiki | +20 | 80 | 84 | - | - | - | |||
| - | Yoshimi Niizeki | +20 | 87 | 77 | - | - | - | |||
| - | Satoru Kamanaka | +21 | 80 | 85 | - | - | - | |||
| - | Hiroshi Fujita | +21 | 82 | 83 | - | - | - | |||
| - | @ Mikio Shimura | +22 | 83 | 83 | - | - | - | |||
| - | @ Nobuhiro Sawada | +24 | 81 | 87 | - | - | - | |||
| - | @ Takeo Matsumoto | +24 | 87 | 81 | - | - | - | |||
| - | Takamichi Ichikawa | +27 | 85 | 86 | - | - | - | |||
| - | @ Toshio Shirai | +28 | 82 | 90 | - | - | - | |||
| - | Hidenori Nakajima | +28 | 85 | 87 | - | - | - | |||
| - | @ Toshio Soma | +30 | 86 | 88 | - | - | - | |||
| - | Hiroshi Todate | +30 | 84 | 90 | - | - | - | |||
| - | Yoshimi Otani | +34 | 90 | 88 | - | - | - | |||
| - | @ Masaki Minami | +38 | 93 | 89 | - | - | - | |||
| WD | Masahiko Akazawa | |||||||||
| WD | Katsunari Takahashi | |||||||||