【Full Leaderboard】 Update 07/19 14:33
31st Japan Senior Open Golf Championship 2021
| ROUND 4 | @：Amateur player |
| POS | Player | Score | Rounds | Total | ||||||
| R1 | R2 | R3 | R4 | |||||||
| - | Kazumasa Sakaitani | +4 | 74 | 72 | - | - | - | |||
| - | Toshimitsu Izawa | +4 | 73 | 73 | - | - | - | |||
| - | Yoshinori Mizumaki | +4 | 74 | 72 | - | - | - | |||
| - | Satoshi Higashi | +4 | 75 | 71 | - | - | - | |||
| - | Gregory Meyer | +4 | 72 | 74 | - | - | - | |||
| - | Nobumasa Nakanishi | +4 | 69 | 77 | - | - | - | |||
| - | Yasuhiro Taguchi | +4 | 71 | 75 | - | - | - | |||
| - | Yusuke Yoda | +4 | 70 | 76 | - | - | - | |||
| - | Eiichiro Hiyama | +5 | 72 | 75 | - | - | - | |||
| - | Takaaki Fukuzawa | +5 | 76 | 71 | - | - | - | |||
| - | @ Mitsunori Kaneko | +5 | 72 | 75 | - | - | - | |||
| - | Tsutomu Higa | +5 | 73 | 74 | - | - | - | |||
| - | Katsuyoshi Murakami | +5 | 73 | 74 | - | - | - | |||
| - | Masahiko Arai | +5 | 77 | 70 | - | - | - | |||
| - | Takenori Hiraishi | +5 | 75 | 72 | - | - | - | |||
| - | Hitoshi Nagao | +5 | 72 | 75 | - | - | - | |||
| - | Hajime Tanaka | +6 | 75 | 73 | - | - | - | |||
| - | Matakichi Yamada | +6 | 73 | 75 | - | - | - | |||
| - | Atsushi Takamatsu | +6 | 73 | 75 | - | - | - | |||
| - | Hirooki Kikkawa | +6 | 73 | 75 | - | - | - | |||
| - | Taku Yamanaka | +6 | 74 | 74 | - | - | - | |||
| - | Chien-Soon Lu | +6 | 72 | 76 | - | - | - | |||
| - | Naoki Okaji | +6 | 73 | 75 | - | - | - | |||
| - | Yukio Fukazawa | +6 | 71 | 77 | - | - | - | |||
| - | Takao Nogami | +7 | 77 | 72 | - | - | - | |||
| - | Yasuo Oshima | +7 | 76 | 73 | - | - | - | |||
| - | Kazuhiro Takami | +7 | 76 | 73 | - | - | - | |||
| - | Yoshito Miki | +7 | 73 | 76 | - | - | - | |||
| - | @ Masaya Takahashi | +7 | 74 | 75 | - | - | - | |||
| - | Norio Hosoya | +7 | 77 | 72 | - | - | - | |||
| - | Keiichi Tsuji | +8 | 75 | 75 | - | - | - | |||
| - | Kazuyoshi Yonekura | +8 | 78 | 72 | - | - | - | |||
| - | Masaki Hasegawa | +8 | 74 | 76 | - | - | - | |||
| - | Tsuneyuki Naka | +9 | 76 | 75 | - | - | - | |||
| - | Fuminobu Yoshinari | +9 | 72 | 79 | - | - | - | |||
| - | Gosaku Kanemura | +9 | 71 | 80 | - | - | - | |||
| - | Masayoshi Nakayama | +9 | 76 | 75 | - | - | - | |||
| - | Masayuki Shimizu | +10 | 78 | 74 | - | - | - | |||
| - | Shoichi Yamamoto | +10 | 74 | 78 | - | - | - | |||
| - | Hironori Yoshida | +10 | 80 | 72 | - | - | - | |||
| - | Tadaaki Hirasawa | +10 | 73 | 79 | - | - | - | |||
| - | Shoichi Kuwabara | +10 | 76 | 76 | - | - | - | |||
| - | Yoshikatsu Saito | +10 | 76 | 76 | - | - | - | |||
| - | Masanori Kojima | +12 | 80 | 74 | - | - | - | |||
| - | @ Hideki Chino | +13 | 79 | 76 | - | - | - | |||
| - | Nobuyuki Shimizu | +13 | 76 | 79 | - | - | - | |||
| - | Hiroki Kuraoka | +14 | 78 | 78 | - | - | - | |||
| - | Yoshinori Kobayashi | +14 | 79 | 77 | - | - | - | |||
| - | Hirofumi Toriumi | +14 | 76 | 80 | - | - | - | |||
| - | @ Koichi Fukino | +14 | 75 | 81 | - | - | - | |||
| - | @ Masahiko Kida | +14 | 80 | 76 | - | - | - | |||
| - | Munemasa Obinata | +14 | 79 | 77 | - | - | - | |||
| - | @ Shigeru Tsuburaya | +15 | 79 | 78 | - | - | - | |||
| - | Kentaro Itoyama | +16 | 80 | 78 | - | - | - | |||
| - | @ Yuichi Iizuka | +16 | 79 | 79 | - | - | - | |||
| - | Norikazu Tanigo | +18 | 81 | 79 | - | - | - | |||
| - | @ Yasushi Yonehara | +19 | 81 | 80 | - | - | - | |||
| - | @ Masaya Honjo | +20 | 84 | 78 | - | - | - | |||
| WD | Hiroshi Kono | |||||||||
| WD | Kazuhiro Fukunaga | |||||||||
| WD | Nobumitsu Yuhara | |||||||||