【Full Leaderboard】 Update 09/20 15:42
30th Japan Senior Open Golf Championship 2020
| ROUND 4 | @：Amateur player |
| POS | Player | Score | Rounds | Total | ||||||
| R1 | R2 | R3 | R4 | |||||||
| - | Nobuo Serizawa | +11 | 75 | 76 | - | - | - | |||
| - | Yoshikatsu Saito | +11 | 75 | 76 | - | - | - | |||
| - | Takeharu Koike | +11 | 74 | 77 | - | - | - | |||
| - | @ Minoru Sugiyama | +11 | 76 | 75 | - | - | - | |||
| - | Nobuhito Sato | +11 | 79 | 72 | - | - | - | |||
| - | Kazuo Seike | +11 | 72 | 79 | - | - | - | |||
| - | Toru Morita | +11 | 75 | 76 | - | - | - | |||
| - | Koichi Kashimura | +11 | 76 | 75 | - | - | - | |||
| - | Yoshitaka Yamada | +12 | 77 | 75 | - | - | - | |||
| - | Tomoyuki Hirano | +12 | 76 | 76 | - | - | - | |||
| - | Tatsuo Takasaki | +12 | 71 | 81 | - | - | - | |||
| - | Masaki Hasegawa | +12 | 80 | 72 | - | - | - | |||
| - | @ Akio Mizukami | +12 | 76 | 76 | - | - | - | |||
| - | Mitsutoshi Koike | +13 | 79 | 74 | - | - | - | |||
| - | Satoshi Kawamura | +13 | 78 | 75 | - | - | - | |||
| - | Take Koyama | +13 | 76 | 77 | - | - | - | |||
| - | Yoshiyuki Ohashi | +13 | 76 | 77 | - | - | - | |||
| - | Tomoyuki Nagai | +13 | 73 | 80 | - | - | - | |||
| - | Minoru Miyashita | +13 | 78 | 75 | - | - | - | |||
| - | Takaaki Fukuzawa | +13 | 77 | 76 | - | - | - | |||
| - | Yoshinori Kaneko | +14 | 76 | 78 | - | - | - | |||
| - | Mitsuo Harada | +14 | 80 | 74 | - | - | - | |||
| - | Hajime Tanaka | +14 | 78 | 76 | - | - | - | |||
| - | Katsuyoshi Tomori | +14 | 75 | 79 | - | - | - | |||
| - | Yasuo Nakamura | +14 | 76 | 78 | - | - | - | |||
| - | Satoshi Higashi | +14 | 76 | 78 | - | - | - | |||
| - | Matakichi Yamada | +14 | 76 | 78 | - | - | - | |||
| - | Yuzo Oyama | +14 | 78 | 76 | - | - | - | |||
| - | Akio Nishizawa | +15 | 80 | 75 | - | - | - | |||
| - | Ken Hayano | +15 | 73 | 82 | - | - | - | |||
| - | Takao Komizo | +15 | 76 | 79 | - | - | - | |||
| - | Hiroshi Tominaga | +15 | 75 | 80 | - | - | - | |||
| - | Seiji Ebihara | +15 | 80 | 75 | - | - | - | |||
| - | Toshio Ozaki | +15 | 79 | 76 | - | - | - | |||
| - | Tadaaki Hirasawa | +15 | 74 | 81 | - | - | - | |||
| - | @ Yosuke Tanaka | +16 | 79 | 77 | - | - | - | |||
| - | Takeshi Oyama | +17 | 82 | 75 | - | - | - | |||
| - | Toshikazu Fukuda | +17 | 80 | 77 | - | - | - | |||
| - | Takeshi Nakashima | +17 | 79 | 78 | - | - | - | |||
| - | Kazushige Oya | +17 | 83 | 74 | - | - | - | |||
| - | @ Haruhisa Kanaoka | +17 | 80 | 77 | - | - | - | |||
| - | Toshikatsu Asazawa | +17 | 78 | 79 | - | - | - | |||
| - | Junji Hashizoe | +18 | 80 | 78 | - | - | - | |||
| - | @ Toshiharu Kimura | +18 | 82 | 76 | - | - | - | |||
| - | @ Hideki Tachi | +19 | 81 | 78 | - | - | - | |||
| - | @ Hiroshi Oku | +20 | 83 | 77 | - | - | - | |||
| - | Mamoru Nakata | +21 | 83 | 78 | - | - | - | |||
| - | Keisuke Imanishi | +21 | 80 | 81 | - | - | - | |||
| - | @ Yasushi Yonehara | +21 | 78 | 83 | - | - | - | |||
| - | @ Shiro Mori | +24 | 83 | 81 | - | - | - | |||
| - | Yasuyoshi Tada | +25 | 81 | 84 | - | - | - | |||
| - | Noboru Matsuo | +27 | 84 | 83 | - | - | - | |||
| - | Nobuyuki Asano | +27 | 83 | 84 | - | - | - | |||
| - | @ Mitsuhiro Takemura | +28 | 88 | 80 | - | - | - | |||
| - | Tomonori Takamura | +30 | 79 | 91 | - | - | - | |||
| WD | Tateo Ozaki | |||||||||
| WD | @ Nobuhiro Sawada | |||||||||
| WD | Daisuke Serizawa | |||||||||