【Full Leaderboard】 Update 07/15 16:41
28th Japan Senior Open Golf Championship 2018
| ROUND 3 | @：Amateur player |
| POS | Player | Score | Today | Hole | Rounds | Total | |||
| R1 | R2 | R3 | R4 | ||||||
| 1 | Prayad Marksaeng | -4 | -4 | F | 74 | 68 | 67 | - | 209 |
| 2 | Ryoken Kawagishi | -1 | ±0 | F | 71 | 70 | 71 | - | 212 |
| Jong-Duck Kim | -1 | +1 | F | 71 | 69 | 72 | - | 212 | |
| Toru Taniguchi | -1 | +3 | F | 72 | 66 | 74 | - | 212 | |
| Akira Teranishi | -1 | +2 | F | 71 | 68 | 73 | - | 212 | |
| 6 | Toru Suzuki | +1 | -1 | F | 74 | 70 | 70 | - | 214 |
| Chien-Soon Lu | +1 | ±0 | F | 72 | 71 | 71 | - | 214 | |
| Takeshi Sakiyama | +1 | ±0 | F | 73 | 70 | 71 | - | 214 | |
| 9 | Shinichi Akiba | +2 | -1 | F | 76 | 69 | 70 | - | 215 |
| Katsumi Kubo | +2 | ±0 | F | 71 | 73 | 71 | - | 215 | |
| 11 | Tsuyoshi Yoneyama | +3 | ±0 | F | 73 | 72 | 71 | - | 216 |
| Hidezumi Shirakata | +3 | ±0 | F | 71 | 74 | 71 | - | 216 | |
| Hideki Kase | +3 | +1 | F | 75 | 69 | 72 | - | 216 | |
| 14 | Kohki Idoki | +4 | -1 | F | 76 | 71 | 70 | - | 217 |
| Toshimitsu Izawa | +4 | +2 | F | 71 | 73 | 73 | - | 217 | |
| Kyoji Hirota | +4 | +2 | F | 76 | 68 | 73 | - | 217 | |
| 17 | Hiroshi Tominaga | +5 | +3 | F | 72 | 72 | 74 | - | 218 |
| 18 | Thaworn Wiratchant | +6 | ±0 | F | 78 | 70 | 71 | - | 219 |
| Masayoshi Yamazoe | +6 | +2 | F | 75 | 71 | 73 | - | 219 | |
| Tsukasa Watanabe | +6 | +2 | F | 71 | 75 | 73 | - | 219 | |
| Ikuo Shirahama | +6 | +4 | F | 70 | 74 | 75 | - | 219 | |
| Gregory Meyer | +6 | +5 | F | 70 | 73 | 76 | - | 219 | |
| 23 | Kazuhiro Takami | +7 | +1 | F | 73 | 75 | 72 | - | 220 |
| Koichi Nogami | +7 | +3 | F | 73 | 73 | 74 | - | 220 | |
| 25 | Akihito Yokoyama | +9 | ±0 | F | 79 | 72 | 71 | - | 222 |
| Yoshinori Mizumaki | +9 | +5 | F | 73 | 73 | 76 | - | 222 | |
| Wen-Teh Lu | +9 | +6 | F | 75 | 70 | 77 | - | 222 | |
| 28 | Shintaro Iizuka | +10 | +2 | F | 78 | 72 | 73 | - | 223 |
| Frankie Minoza | +10 | +3 | F | 79 | 70 | 74 | - | 223 | |
| Masahiro Kuramoto | +10 | +4 | F | 77 | 71 | 75 | - | 223 | |
| Masayoshi Nakayama | +10 | +5 | F | 75 | 72 | 76 | - | 223 | |
| Yoichi Shimizu | +10 | +5 | F | 76 | 71 | 76 | - | 223 | |
| Hiroya Kamide | +10 | +5 | F | 76 | 71 | 76 | - | 223 | |
| 34 | Yutaka Hagawa | +11 | +1 | F | 80 | 72 | 72 | - | 224 |
| Hatsuo Nakane | +11 | +1 | F | 75 | 77 | 72 | - | 224 | |
| Masami Ito | +11 | +2 | F | 80 | 71 | 73 | - | 224 | |
| Ter-Chang Wang | +11 | +6 | F | 74 | 73 | 77 | - | 224 | |
| 38 | Hitoshi Kato | +12 | +2 | F | 76 | 76 | 73 | - | 225 |
| Ken Hayano | +12 | +5 | F | 75 | 74 | 76 | - | 225 | |
| Kiyoshi Maita | +12 | +6 | F | 74 | 74 | 77 | - | 225 | |
| Nobumasa Nakanishi | +12 | +7 | F | 76 | 71 | 78 | - | 225 | |
| Shinichi Yamazaki | +12 | +7 | F | 77 | 70 | 78 | - | 225 | |
| Hidekazu Makino | +12 | +7 | F | 75 | 72 | 78 | - | 225 | |
| 44 | Yoshikatsu Saito | +13 | +5 | F | 77 | 73 | 76 | - | 226 |
| 45 | Atsushi Takamatsu | +14 | +4 | F | 77 | 75 | 75 | - | 227 |
| Naoyuki Tamura | +14 | +7 | F | 76 | 73 | 78 | - | 227 | |
| 47 | Masayuki Tomita | +15 | +4 | F | 79 | 74 | 75 | - | 228 |
| Yoichi Sugawara | +15 | +6 | F | 76 | 75 | 77 | - | 228 | |
| Satoshi Higashi | +15 | +7 | F | 75 | 75 | 78 | - | 228 | |
| Tatsuru Watanabe | +15 | +7 | F | 76 | 74 | 78 | - | 228 | |
| Mitsuo Harada | +15 | +12 | F | 74 | 71 | 83 | - | 228 | |
| 52 | Seiki Okuda | +16 | +5 | F | 79 | 74 | 76 | - | 229 |
| Yoshitaka Yamada | +16 | +6 | F | 78 | 74 | 77 | - | 229 | |
| Takenori Hiraishi | +16 | +8 | F | 76 | 74 | 79 | - | 229 | |
| Takeshi Nakashima | +16 | +9 | F | 74 | 75 | 80 | - | 229 | |
| 56 | Takaaki Fukuzawa | +17 | +11 | F | 79 | 69 | 82 | - | 230 |
| 57 | Tetsu Nishikawa | +18 | +7 | F | 80 | 73 | 78 | - | 231 |
| Taku Yamanaka | +18 | +7 | F | 77 | 76 | 78 | - | 231 | |
| Norio Hosoya | +18 | +8 | F | 78 | 74 | 79 | - | 231 | |
| @ Takashi Kamei | +18 | +8 | F | 74 | 78 | 79 | - | 231 | |
| Satoshi Aoki | +18 | +8 | F | 78 | 74 | 79 | - | 231 | |
| 62 | Yuji Fukuda | +19 | +8 | F | 74 | 79 | 79 | - | 232 |
| Nobuo Serizawa | +19 | +8 | F | 80 | 73 | 79 | - | 232 | |
| 64 | Seijiro Inagaki | +20 | +10 | F | 77 | 75 | 81 | - | 233 |
| 65 | @ Masahiko Kida | +25 | +14 | F | 76 | 77 | 85 | - | 238 |