【Full Leaderboard】 Update 05/20 15:10
22nd Japan Senior Open Golf Championship 2012
| ROUND 3 | @：Amateur player |
| POS | Player | Score | Today | Hole | Rounds | Total | |||
| R1 | R2 | R3 | R4 | ||||||
| 1 | Koki Idoki | -4 | ±0 | F | 70 | 70 | 72 | - | 212 |
| 2 | Tsuneyuki Nakajima | -3 | -4 | F | 70 | 75 | 68 | - | 213 |
| Frankie Minoza | -3 | ±0 | F | 69 | 72 | 72 | - | 213 | |
| Kiyoshi Murota | -3 | -1 | F | 70 | 72 | 71 | - | 213 | |
| Barry Lane | -3 | +1 | F | 70 | 70 | 73 | - | 213 | |
| 6 | Boonchu Ruangkit | -1 | -3 | F | 72 | 74 | 69 | - | 215 |
| 7 | Satoshi Higashi | ±0 | -1 | F | 72 | 73 | 71 | - | 216 |
| 8 | Kiyoshi Maita | +1 | +1 | F | 70 | 74 | 73 | - | 217 |
| 9 | Atsushi Takamatsu | +3 | -1 | F | 73 | 75 | 71 | - | 219 |
| Tsukasa Watanabe | +3 | ±0 | F | 75 | 72 | 72 | - | 219 | |
| 11 | Masahiro Kuramoto | +4 | ±0 | F | 75 | 73 | 72 | - | 220 |
| Hideki Kase | +4 | +1 | F | 72 | 75 | 73 | - | 220 | |
| Nobumitsu Yuhara | +4 | +2 | F | 72 | 74 | 74 | - | 220 | |
| Kimpachi Yoshimura | +4 | +5 | F | 72 | 71 | 77 | - | 220 | |
| 15 | Kazuhiro Takami | +5 | -2 | F | 78 | 73 | 70 | - | 221 |
| Yoshitaka Yamamoto | +5 | -1 | F | 73 | 77 | 71 | - | 221 | |
| Takenori Hiraishi | +5 | +2 | F | 73 | 74 | 74 | - | 221 | |
| Seiki Okuda | +5 | +3 | F | 71 | 75 | 75 | - | 221 | |
| Yoshinori Mizumaki | +5 | +3 | F | 73 | 73 | 75 | - | 221 | |
| Ikuo Shirahama | +5 | +4 | F | 72 | 73 | 76 | - | 221 | |
| 21 | Peter Fowler | +6 | -1 | F | 74 | 77 | 71 | - | 222 |
| Masami Ito | +6 | +2 | F | 75 | 73 | 74 | - | 222 | |
| Yutaka Hagawa | +6 | +6 | F | 71 | 73 | 78 | - | 222 | |
| 24 | Katsuyoshi Tomori | +8 | +2 | F | 74 | 76 | 74 | - | 224 |
| Kazunari Matsunaga | +8 | +3 | F | 74 | 75 | 75 | - | 224 | |
| Marc Farry | +8 | +3 | F | 77 | 72 | 75 | - | 224 | |
| Shinji Ikeuchi | +8 | +4 | F | 76 | 72 | 76 | - | 224 | |
| Naomichi Ozaki | +8 | +5 | F | 70 | 77 | 77 | - | 224 | |
| 29 | Gregory Meyer | +9 | +1 | F | 74 | 78 | 73 | - | 225 |
| Tomoyuki Nagai | +9 | +4 | F | 74 | 75 | 76 | - | 225 | |
| Katsumi Kubo | +9 | +5 | F | 74 | 74 | 77 | - | 225 | |
| Roberto Pactolerin | +9 | +6 | F | 76 | 71 | 78 | - | 225 | |
| 33 | Michael Harwood | +10 | +3 | F | 73 | 78 | 75 | - | 226 |
| 34 | Hiroshi Tominaga | +11 | +4 | F | 75 | 76 | 76 | - | 227 |
| Nobuo Serizawa | +11 | +7 | F | 75 | 73 | 79 | - | 227 | |
| 36 | Yoichi Sugawara | +12 | +2 | F | 76 | 78 | 74 | - | 228 |
| Takashi Miyoshi | +12 | +3 | F | 74 | 79 | 75 | - | 228 | |
| Hideto Shigenobu | +12 | +3 | F | 77 | 76 | 75 | - | 228 | |
| Minoru Hatsumi | +12 | +5 | F | 75 | 76 | 77 | - | 228 | |
| 40 | David J Russell | +13 | +5 | F | 74 | 78 | 77 | - | 229 |
| Takaaki Fukuzawa | +13 | +6 | F | 76 | 75 | 78 | - | 229 | |
| @ Minoru Sugiyama | +13 | +6 | F | 77 | 74 | 78 | - | 229 | |
| 43 | Yoshio Fumiyama | +14 | +2 | F | 78 | 78 | 74 | - | 230 |
| 44 | Keiji Teshima | +15 | +3 | F | 77 | 79 | 75 | - | 231 |
| Hiromichi Namiki | +15 | +4 | F | 74 | 81 | 76 | - | 231 | |
| Toshinori Horiki | +15 | +7 | F | 78 | 74 | 79 | - | 231 | |
| 47 | Teruyasu Hayashi | +16 | +4 | F | 77 | 79 | 76 | - | 232 |
| Taisei Inagaki | +16 | +4 | F | 79 | 77 | 76 | - | 232 | |
| Mitsuharu Suzuki | +16 | +6 | F | 77 | 77 | 78 | - | 232 | |
| Isao Aoki | +16 | +7 | F | 76 | 77 | 79 | - | 232 | |
| @ Shingo Matsumoto | +16 | +7 | F | 77 | 76 | 79 | - | 232 | |
| Kazuo Kanayama | +16 | +9 | F | 72 | 79 | 81 | - | 232 | |
| 53 | Gohei Sato | +17 | +6 | F | 79 | 76 | 78 | - | 233 |
| Satoshi Oide | +17 | +8 | F | 77 | 76 | 80 | - | 233 | |
| Yasuzo Hagiwara | +17 | +9 | F | 73 | 79 | 81 | - | 233 | |
| 56 | @ Toshiharu Kimura | +19 | +8 | F | 77 | 78 | 80 | - | 235 |
| Yoshihisa Kosaka | +19 | +10 | F | 74 | 79 | 82 | - | 235 | |
| Yukio Noguchi | +19 | +11 | F | 78 | 74 | 83 | - | 235 | |
| 59 | Akihiro Ito | +20 | +8 | F | 79 | 77 | 80 | - | 236 |
| Takashi Hishinuma | +20 | +9 | F | 79 | 76 | 81 | - | 236 | |
| 61 | Kazushige Oya | +21 | +9 | F | 77 | 79 | 81 | - | 237 |
| Toshimitsu Kai | +21 | +10 | F | 81 | 74 | 82 | - | 237 | |
| 63 | Dragon Taki | +22 | +11 | F | 78 | 77 | 83 | - | 238 |
| @ Toshiaki Tamura | +22 | +14 | F | 76 | 76 | 86 | - | 238 | |