【Full Leaderboard】 Update 05/20 15:03
74th Japan Open Golf Championship 2009
| ROUND 4 | @：Amateur player |
| POS | Player | Score | Today | Hole | Rounds | Total | Prize | |||
| R1 | R2 | R3 | R4 | |||||||
| 1 | Ryuichi Oda | -6 | -5 | F | 74 | 70 | 71 | 67 | 282 | ￥ 40,000,000 |
| 2 | Ryo Ishikawa | -6 | -1 | F | 70 | 76 | 65 | 71 | 282 | ￥ 18,700,000 |
| Yasuharu Imano | -6 | -2 | F | 73 | 69 | 70 | 70 | 282 | ￥ 18,700,000 | |
| 4 | Hiroyuki Fujita | -3 | -3 | F | 69 | 72 | 75 | 69 | 285 | ￥ 9,200,000 |
| Hirofumi Miyase | -3 | -3 | F | 72 | 70 | 74 | 69 | 285 | ￥ 9,200,000 | |
| 6 | Kenichi Kuboya | -1 | -3 | F | 70 | 75 | 73 | 69 | 287 | ￥ 5,650,000 |
| Shintaro Kai | -1 | -3 | F | 72 | 74 | 72 | 69 | 287 | ￥ 5,650,000 | |
| Hidemasa Hoshino | -1 | +2 | F | 72 | 75 | 66 | 74 | 287 | ￥ 5,650,000 | |
| David Smail | -1 | +1 | F | 71 | 71 | 72 | 73 | 287 | ￥ 5,650,000 | |
| 10 | Kaname Yokoo | ±0 | -3 | F | 71 | 72 | 76 | 69 | 288 | ￥ 3,300,000 |
| Masaya Tomida | ±0 | -2 | F | 75 | 70 | 73 | 70 | 288 | ￥ 3,300,000 | |
| Brendan Jones | ±0 | ±0 | F | 73 | 70 | 73 | 72 | 288 | ￥ 3,300,000 | |
| Hideto Tanihara | ±0 | ±0 | F | 75 | 69 | 72 | 72 | 288 | ￥ 3,300,000 | |
| 14 | Tetsuji Hiratsuka | +1 | -1 | F | 75 | 71 | 72 | 71 | 289 | ￥ 2,295,000 |
| Han Lee | +1 | ±0 | F | 69 | 72 | 76 | 72 | 289 | ￥ 2,295,000 | |
| Taichi Teshima | +1 | +1 | F | 69 | 75 | 72 | 73 | 289 | ￥ 2,295,000 | |
| Azuma Yano | +1 | +2 | F | 70 | 75 | 70 | 74 | 289 | ￥ 2,295,000 | |
| 18 | Prayad Marksaeng | +2 | -2 | F | 73 | 72 | 75 | 70 | 290 | ￥ 1,950,000 |
| Yuta Ikeda | +2 | -2 | F | 74 | 75 | 71 | 70 | 290 | ￥ 1,950,000 | |
| 20 | Tetsuya Haraguchi | +3 | -1 | F | 76 | 69 | 75 | 71 | 291 | ￥ 1,715,000 |
| Katsunori Kuwabara | +3 | -1 | F | 73 | 73 | 74 | 71 | 291 | ￥ 1,715,000 | |
| Sushi Ishigaki | +3 | +1 | F | 70 | 74 | 74 | 73 | 291 | ￥ 1,715,000 | |
| Ryutaro Nagano | +3 | +2 | F | 69 | 75 | 73 | 74 | 291 | ￥ 1,715,000 | |
| 24 | Kunihiro Kamii | +4 | ±0 | F | 76 | 72 | 72 | 72 | 292 | ￥ 1,600,000 |
| 25 | Yuji Igarashi | +5 | ±0 | F | 69 | 76 | 76 | 72 | 293 | ￥ 1,480,000 |
| Kazuhiko Hosokawa | +5 | +2 | F | 74 | 71 | 74 | 74 | 293 | ￥ 1,480,000 | |
| Shingo Katayama | +5 | +3 | F | 72 | 70 | 76 | 75 | 293 | ￥ 1,480,000 | |
| Tomohiro Kondo | +5 | +4 | F | 71 | 72 | 74 | 76 | 293 | ￥ 1,480,000 | |
| Kazuhiro Yamashita | +5 | +5 | F | 68 | 76 | 72 | 77 | 293 | ￥ 1,480,000 | |
| 30 | Hatsuo Nakane | +6 | +1 | F | 73 | 72 | 76 | 73 | 294 | ￥ 1,315,000 |
| Hyung-Sung Kim | +6 | +1 | F | 71 | 77 | 73 | 73 | 294 | ￥ 1,315,000 | |
| Komei Oda | +6 | +2 | F | 72 | 73 | 75 | 74 | 294 | ￥ 1,315,000 | |
| @ Yoshinori Fujimoto | +6 | +3 | F | 74 | 72 | 73 | 75 | 294 | - | |
| Katsumasa Miyamoto | +6 | +4 | F | 70 | 72 | 76 | 76 | 294 | ￥ 1,315,000 | |
| 35 | Daisuke Maruyama | +7 | +2 | F | 73 | 69 | 79 | 74 | 295 | ￥ 1,230,000 |
| Steven Conran | +7 | +3 | F | 74 | 74 | 72 | 75 | 295 | ￥ 1,230,000 | |
| Makoto Inoue | +7 | +5 | F | 72 | 73 | 73 | 77 | 295 | ￥ 1,230,000 | |
| Shigeru Nonaka | +7 | +8 | F | 68 | 77 | 70 | 80 | 295 | ￥ 1,230,000 | |
| 39 | Hidemichi Tanaka | +8 | +1 | F | 73 | 73 | 77 | 73 | 296 | ￥ 1,160,000 |
| Satoru Hirota | +8 | +2 | F | 75 | 70 | 77 | 74 | 296 | ￥ 1,160,000 | |
| Takashi Kanemoto | +8 | +4 | F | 75 | 70 | 75 | 76 | 296 | ￥ 1,160,000 | |
| 42 | Shinichi Akiba | +9 | ±0 | F | 73 | 74 | 78 | 72 | 297 | ￥ 1,070,000 |
| Yasunori Yoshida | +9 | ±0 | F | 75 | 72 | 78 | 72 | 297 | ￥ 1,070,000 | |
| Tomokazu Yoshinaga | +9 | ±0 | F | 77 | 71 | 77 | 72 | 297 | ￥ 1,070,000 | |
| @ Tomoyuki Otsuka | +9 | +3 | F | 73 | 71 | 78 | 75 | 297 | - | |
| Toyokazu Fujishima | +9 | +3 | F | 72 | 73 | 77 | 75 | 297 | ￥ 1,070,000 | |
| Masayoshi Nakayama | +9 | +3 | F | 72 | 76 | 74 | 75 | 297 | ￥ 1,070,000 | |
| @ Satoshi Kodaira | +9 | +4 | F | 76 | 70 | 75 | 76 | 297 | - | |
| Naoya Takemoto | +9 | +7 | F | 70 | 75 | 73 | 79 | 297 | ￥ 1,070,000 | |
| 50 | Toyokazu Hioki | +10 | +5 | F | 69 | 75 | 77 | 77 | 298 | ￥ 990,000 |
| Kiyoshi Miyazato | +10 | +5 | F | 72 | 75 | 74 | 77 | 298 | ￥ 990,000 | |
| 52 | @ Hideki Matsuyama | +11 | +4 | F | 70 | 74 | 79 | 76 | 299 | - |
| 53 | Tadaaki Kimura | +12 | +4 | F | 76 | 73 | 75 | 76 | 300 | ￥ 960,000 |
| @ Masahiro Kawamura | +12 | +6 | F | 73 | 72 | 77 | 78 | 300 | - | |
| 55 | Takeshi Kajikawa | +13 | +5 | F | 74 | 74 | 76 | 77 | 301 | ￥ 930,000 |
| Yudai Maeda | +13 | +6 | F | 72 | 77 | 74 | 78 | 301 | ￥ 930,000 | |
| 57 | Yoshinori Mizumaki | +15 | +2 | F | 75 | 74 | 80 | 74 | 303 | ￥ 890,000 |
| Toshinori Muto | +15 | +8 | F | 77 | 72 | 74 | 80 | 303 | ￥ 890,000 | |
| 59 | Toshimitsu Izawa | +16 | +7 | F | 73 | 75 | 77 | 79 | 304 | ￥ 860,000 |
| 60 | Mitsuhiro Tateyama | +17 | +5 | F | 72 | 73 | 83 | 77 | 305 | ￥ 840,000 |
| 61 | Tatsuhiro Hirai | +22 | +5 | F | 77 | 72 | 84 | 77 | 310 | ￥ 820,000 |