【Full Leaderboard】 Update 05/20 15:06
20th Japan Senior Open Golf Championship 2010
| ROUND 3 | @：Amateur player |
| POS | Player | Score | Today | Hole | Rounds | Total | |||
| R1 | R2 | R3 | R4 | ||||||
| 1 | Boonchu Ruangkit | ±0 | ±0 | F | 73 | 67 | 70 | - | 210 |
| 2 | Masahiro Kuramoto | +2 | -3 | F | 76 | 69 | 67 | - | 212 |
| Nobumitsu Yuhara | +2 | -1 | F | 70 | 73 | 69 | - | 212 | |
| 4 | Yoshinori Mizumaki | +3 | +2 | F | 68 | 73 | 72 | - | 213 |
| 5 | Hiroshi Ueda | +4 | +1 | F | 73 | 70 | 71 | - | 214 |
| Kiyoshi Maita | +4 | +2 | F | 72 | 70 | 72 | - | 214 | |
| 7 | Yoshikazu Yokoshima | +6 | +2 | F | 72 | 72 | 72 | - | 216 |
| Kiyoshi Murota | +6 | +4 | F | 69 | 73 | 74 | - | 216 | |
| 9 | Tsuneyuki Nakajima | +7 | -1 | F | 70 | 78 | 69 | - | 217 |
| David Merriman | +7 | +1 | F | 73 | 73 | 71 | - | 217 | |
| Katsunari Takahashi | +7 | +2 | F | 71 | 74 | 72 | - | 217 | |
| 12 | Tateo Ozaki | +8 | +2 | F | 74 | 72 | 72 | - | 218 |
| Mike Cunning | +8 | +1 | F | 72 | 75 | 71 | - | 218 | |
| Seiji Ebihara | +8 | +3 | F | 74 | 71 | 73 | - | 218 | |
| 15 | Hideki Kase | +9 | ±0 | F | 73 | 76 | 70 | - | 219 |
| Atsushi Takamatsu | +9 | +2 | F | 76 | 71 | 72 | - | 219 | |
| 17 | Shinji Ikeuchi | +10 | +2 | F | 74 | 74 | 72 | - | 220 |
| Nobuo Serizawa | +10 | +6 | F | 72 | 72 | 76 | - | 220 | |
| Mitsuharu Suzuki | +10 | +5 | F | 75 | 70 | 75 | - | 220 | |
| 20 | Norikazu Kawakami | +11 | +1 | F | 78 | 72 | 71 | - | 221 |
| Takenori Hiraishi | +11 | +4 | F | 75 | 72 | 74 | - | 221 | |
| Satoshi Aoki | +11 | +3 | F | 73 | 75 | 73 | - | 221 | |
| Gohei Sato | +11 | +5 | F | 74 | 72 | 75 | - | 221 | |
| Masami Ito | +11 | +6 | F | 72 | 73 | 76 | - | 221 | |
| Mike Harwood | +11 | +6 | F | 70 | 75 | 76 | - | 221 | |
| Yoshio Fumiyama | +11 | +7 | F | 72 | 72 | 77 | - | 221 | |
| 27 | Tsukasa Watanabe | +12 | +3 | F | 73 | 76 | 73 | - | 222 |
| Gwang-Soo Choi | +12 | +8 | F | 72 | 72 | 78 | - | 222 | |
| 29 | Minoru Hatsumi | +13 | +3 | F | 75 | 75 | 73 | - | 223 |
| Yoichi Yamamoto | +13 | +5 | F | 75 | 73 | 75 | - | 223 | |
| Tadashige Kusano | +13 | +9 | F | 73 | 71 | 79 | - | 223 | |
| 32 | Kazuhiro Takami | +14 | +3 | F | 76 | 75 | 73 | - | 224 |
| Yutaka Hagawa | +14 | +3 | F | 79 | 72 | 73 | - | 224 | |
| Isao Aoki | +14 | +2 | F | 74 | 78 | 72 | - | 224 | |
| Masanobu Kimura | +14 | +6 | F | 73 | 75 | 76 | - | 224 | |
| Tomohiro Maruyama | +14 | +8 | F | 68 | 78 | 78 | - | 224 | |
| 37 | Shuichi Sano | +15 | +6 | F | 75 | 74 | 76 | - | 225 |
| Katsuyoshi Tomori | +15 | +4 | F | 74 | 77 | 74 | - | 225 | |
| Hajime Meshiai | +15 | +2 | F | 77 | 76 | 72 | - | 225 | |
| 40 | Teruo Nakamura | +16 | +4 | F | 74 | 78 | 74 | - | 226 |
| Noboru Fujiike | +16 | +2 | F | 76 | 78 | 72 | - | 226 | |
| 42 | Koji Okuno | +17 | +11 | F | 75 | 71 | 81 | - | 227 |
| David Ishii | +17 | +3 | F | 77 | 77 | 73 | - | 227 | |
| 44 | Takashi Miyoshi | +18 | +7 | F | 73 | 78 | 77 | - | 228 |
| Kenshi Ikeda | +18 | +7 | F | 73 | 78 | 77 | - | 228 | |
| Yukio Noguchi | +18 | +5 | F | 74 | 79 | 75 | - | 228 | |
| 47 | Seiki Okuda | +19 | +10 | F | 79 | 70 | 80 | - | 229 |
| Koichi Kamiya | +19 | +10 | F | 70 | 79 | 80 | - | 229 | |
| Ikuo Shirahama | +19 | +6 | F | 76 | 77 | 76 | - | 229 | |
| Takaaki Fukuzawa | +19 | +13 | F | 72 | 74 | 83 | - | 229 | |
| Noboru Sugai | +19 | +5 | F | 80 | 74 | 75 | - | 229 | |
| Bill Longmuir | +19 | +5 | F | 77 | 77 | 75 | - | 229 | |
| 53 | Katsuji Hasegawa | +20 | +9 | F | 77 | 74 | 79 | - | 230 |
| Taisei Inagaki | +20 | +8 | F | 75 | 77 | 78 | - | 230 | |
| Toshinori Horiki | +20 | +5 | F | 77 | 78 | 75 | - | 230 | |
| 56 | Takeshi Kitadai | +21 | +9 | F | 77 | 75 | 79 | - | 231 |
| Fumio Noji | +21 | +6 | F | 75 | 80 | 76 | - | 231 | |
| 58 | Hiromichi Namiki | +22 | +9 | F | 79 | 74 | 79 | - | 232 |
| Tomoyuki Nagai | +22 | +7 | F | 78 | 77 | 77 | - | 232 | |
| 60 | Hideyuki Sato | +23 | +12 | F | 76 | 75 | 82 | - | 233 |
| Koichi Takabe | +23 | +9 | F | 79 | 75 | 79 | - | 233 | |
| Toshio Shimamura | +23 | +8 | F | 78 | 77 | 78 | - | 233 | |
| @ Toshiki Sakiyama | +23 | +8 | F | 81 | 74 | 78 | - | 233 | |
| 64 | Yoshinori Ichioka | +25 | +10 | F | 77 | 78 | 80 | - | 235 |