【Full Leaderboard】 Update 10/14 16:23
83rd Japan Open Golf Championship 2018
| ROUND 1 | @：Amateur player |
| POS | Player | Score | Today | Hole | Rounds | Total | ||||
| R1 | R2 | R3 | R4 | |||||||
| 1 | Brendan Jones | -7 | -7 | F | 64 | - | - | - | 64 | |
| Young-Han Song | -7 | -7 | F | 64 | - | - | - | 64 | ||
| Hiroyuki Fujita | -7 | -7 | F | 64 | - | - | - | 64 | ||
| 4 | Yoshinori Fujimoto | -6 | -6 | F | 65 | - | - | - | 65 | |
| David Oh | -6 | -6 | F | 65 | - | - | - | 65 | ||
| Wen-Chong Liang | -6 | -6 | F | 65 | - | - | - | 65 | ||
| 7 | Anthony Quayle | -5 | -5 | F | 66 | - | - | - | 66 | |
| Juvic Pagunsan | -5 | -5 | F | 66 | - | - | - | 66 | ||
| Terumichi Kakazu | -5 | -5 | F | 66 | - | - | - | 66 | ||
| Taichi Nabetani | -5 | -5 | F | 66 | - | - | - | 66 | ||
| 11 | Angelo Que | -4 | -4 | F | 67 | - | - | - | 67 | |
| Atomu Shigenaga | -4 | -4 | F | 67 | - | - | - | 67 | ||
| Toshinori Muto | -4 | -4 | F | 67 | - | - | - | 67 | ||
| Matthew Griffin | -4 | -4 | F | 67 | - | - | - | 67 | ||
| Adam Scott | -4 | -4 | F | 67 | - | - | - | 67 | ||
| Tomoharu Otsuki | -4 | -4 | F | 67 | - | - | - | 67 | ||
| Toru Taniguchi | -4 | -4 | F | 67 | - | - | - | 67 | ||
| 18 | Yuki Inamori | -3 | -3 | F | 68 | - | - | - | 68 | |
| Brad Kennedy | -3 | -3 | F | 68 | - | - | - | 68 | ||
| Shun Murayama | -3 | -3 | F | 68 | - | - | - | 68 | ||
| Shugo Imahira | -3 | -3 | F | 68 | - | - | - | 68 | ||
| @ Yusuke Kaneko | -3 | -3 | F | 68 | - | - | - | 68 | ||
| Yujiro Ohori | -3 | -3 | F | 68 | - | - | - | 68 | ||
| Ryuko Tokimatsu | -3 | -3 | F | 68 | - | - | - | 68 | ||
| Yuta Kinoshita | -3 | -3 | F | 68 | - | - | - | 68 | ||
| Masashi Hidaka | -3 | -3 | F | 68 | - | - | - | 68 | ||
| Shaun Norris | -3 | -3 | F | 68 | - | - | - | 68 | ||
| Masamichi Uehira | -3 | -3 | F | 68 | - | - | - | 68 | ||
| Koumei Oda | -3 | -3 | F | 68 | - | - | - | 68 | ||
| Ho-Sung CHOI | -3 | -3 | F | 68 | - | - | - | 68 | ||
| 31 | Seung-Hyuk Kim | -2 | -2 | F | 69 | - | - | - | 69 | |
| Akihiro Narutomi | -2 | -2 | F | 69 | - | - | - | 69 | ||
| Prayad Marksaeng | -2 | -2 | F | 69 | - | - | - | 69 | ||
| @ Yuto Katsuragawa | -2 | -2 | F | 69 | - | - | - | 69 | ||
| Shunya Takeyasu | -2 | -2 | F | 69 | - | - | - | 69 | ||
| In Hoi HUR | -2 | -2 | F | 69 | - | - | - | 69 | ||
| Mikumu Horikawa | -2 | -2 | F | 69 | - | - | - | 69 | ||
| Yuki Kono | -2 | -2 | F | 69 | - | - | - | 69 | ||
| Daisuke Kataoka | -2 | -2 | F | 69 | - | - | - | 69 | ||
| Masahiro Kawamura | -2 | -2 | F | 69 | - | - | - | 69 | ||
| Jung-Gon Hwang | -2 | -2 | F | 69 | - | - | - | 69 | ||
| @ Daiki Imano | -2 | -2 | F | 69 | - | - | - | 69 | ||
| Satoshi Hara | -2 | -2 | F | 69 | - | - | - | 69 | ||
| 44 | Min-Gyu Cho | -1 | -1 | F | 70 | - | - | - | 70 | |
| Michio Matsumura | -1 | -1 | F | 70 | - | - | - | 70 | ||
| @ Ryuichi Arai | -1 | -1 | F | 70 | - | - | - | 70 | ||
| Keisuke Otawa | -1 | -1 | F | 70 | - | - | - | 70 | ||
| @ Keita Nakajima | -1 | -1 | F | 70 | - | - | - | 70 | ||
| Kyoji Hirota | -1 | -1 | F | 70 | - | - | - | 70 | ||
| Keiichiro Fukabori | -1 | -1 | F | 70 | - | - | - | 70 | ||
| Ryo Ishikawa | -1 | -1 | F | 70 | - | - | - | 70 | ||
| Yoshikazu Haku | -1 | -1 | F | 70 | - | - | - | 70 | ||
| 53 | Michael Hendry | ±0 | ±0 | F | 71 | - | - | - | 71 | |
| Yasuo Sawasaki | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| Yuki Mori | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| Kiyoshi Murota | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| @ David Micheluzzi | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| Seung-Su Han | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| Hiroshi Iwata | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| Tatsuya Kodai | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| @ Taichi Kimura | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| Kodai Ichihara | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| Katsumasa Miyamoto | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| Takafumi Kawane | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| Ippei Koike | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| Yoshinobu Tsukada | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| Taichi Teshima | ±0 | ±0 | F | 71 | - | - | - | 71 | ||
| 68 | Sachio Sugiyama | +1 | +1 | F | 72 | - | - | - | 72 | |
| Yong-Eun Yang | +1 | +1 | F | 72 | - | - | - | 72 | ||
| @ Takumi Kanaya | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Daijiro Izumida | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Shota Akiyoshi | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Hyun-Wu Ryu | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Kazuki Higa | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Shinichi Fujii | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Kyung-Nam Kang | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Kazuhiro Yamashita | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Hiroki Hidaka | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Tomohiro Umeyama | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Takashi Ogiso | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Takuya Higa | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Shunsuke Otani | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Masanori Kobayashi | +1 | +1 | F | 72 | - | - | - | 72 | ||
| @ Shota Ozaki | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Shingo Katayama | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Yasuji Kanai | +1 | +1 | F | 72 | - | - | - | 72 | ||
| Yosuke Tsukada | +1 | +1 | F | 72 | - | - | - | 72 | ||
| @ Ren Yonezawa | +1 | +1 | F | 72 | - | - | - | 72 | ||
| 89 | Kunihiro Kamii | +2 | +2 | F | 73 | - | - | - | 73 | |
| Tomoyasu Sugiyama | +2 | +2 | F | 73 | - | - | - | 73 | ||
| @ Ryuji Nozawa | +2 | +2 | F | 73 | - | - | - | 73 | ||
| Akio Sadakata | +2 | +2 | F | 73 | - | - | - | 73 | ||
| @ Koki Tomita | +2 | +2 | F | 73 | - | - | - | 73 | ||
| Rikuya Hoshino | +2 | +2 | F | 73 | - | - | - | 73 | ||
| Hyung-Sung Kim | +2 | +2 | F | 73 | - | - | - | 73 | ||
| Yuto Katsumata | +2 | +2 | F | 73 | - | - | - | 73 | ||
| Shin Saito | +2 | +2 | F | 73 | - | - | - | 73 | ||
| 98 | Koki Furuta | +3 | +3 | F | 74 | - | - | - | 74 | |
| Shota Matsumoto | +3 | +3 | F | 74 | - | - | - | 74 | ||
| Takashi Iwamoto | +3 | +3 | F | 74 | - | - | - | 74 | ||
| Koichi Kitamura | +3 | +3 | F | 74 | - | - | - | 74 | ||
| Masao Nakajima | +3 | +3 | F | 74 | - | - | - | 74 | ||
| Yuta Ikeda | +3 | +3 | F | 74 | - | - | - | 74 | ||
| Ryutaro Nagano | +3 | +3 | F | 74 | - | - | - | 74 | ||
| 105 | Kenichi Iwao | +4 | +4 | F | 75 | - | - | - | 75 | |
| Sang-Hee Lee | +4 | +4 | F | 75 | - | - | - | 75 | ||
| Yuta Nishi | +4 | +4 | F | 75 | - | - | - | 75 | ||
| 108 | Koki Shiomi | +5 | +5 | F | 76 | - | - | - | 76 | |
| Tomohiro Kondo | +5 | +5 | F | 76 | - | - | - | 76 | ||
| @ Tomohiro Ishizaka | +5 | +5 | F | 76 | - | - | - | 76 | ||
| Won Joon Lee | +5 | +5 | F | 76 | - | - | - | 76 | ||
| 112 | Yusaku Miyazato | +6 | +6 | F | 77 | - | - | - | 77 | |
| Scott Strange | +6 | +6 | F | 77 | - | - | - | 77 | ||
| Ren Takeuchi | +6 | +6 | F | 77 | - | - | - | 77 | ||
| Takanori Konishi | +6 | +6 | F | 77 | - | - | - | 77 | ||
| Kenichi Kuboya | +6 | +6 | F | 77 | - | - | - | 77 | ||
| 117 | Yoshihito Kawai | +7 | +7 | F | 78 | - | - | - | 78 | |
| Sho Nagasawa | +7 | +7 | F | 78 | - | - | - | 78 | ||
| 119 | Keita Tokunaga | +10 | +10 | F | 81 | - | - | - | 81 | |
| WD | Yoshitaka Takeya | |||||||||