【Full Leaderboard】 Update 10/16 18:31
88th Japan Open Golf Championship 2023
| ROUND 3 | @：Amateur player |
| POS | Player | Score | Today | Hole | Rounds | Total | |||
| R1 | R2 | R3 | R4 | ||||||
| 1 | Sejung Hiramoto | -6 | -5 | F | 70 | 69 | 65 | - | 204 |
| 2 | Tomoharu Otsuki | -5 | -3 | F | 69 | 69 | 67 | - | 205 |
| 3 | Naoyuki Kataoka | -4 | -4 | F | 69 | 71 | 66 | - | 206 |
| Shaun Norris | -4 | -2 | F | 72 | 66 | 68 | - | 206 | |
| Takahiro Hataji | -4 | -1 | F | 70 | 67 | 69 | - | 206 | |
| Ryo Ishikawa | -4 | -1 | F | 68 | 69 | 69 | - | 206 | |
| 7 | Yusaku Hosono | -3 | -4 | F | 71 | 70 | 66 | - | 207 |
| Aguri Iwasaki | -3 | -3 | F | 68 | 72 | 67 | - | 207 | |
| Kota Kaneko | -3 | ±0 | F | 67 | 70 | 70 | - | 207 | |
| @ Kohei Okada | -3 | ±0 | F | 66 | 71 | 70 | - | 207 | |
| 11 | Ryosuke Kinoshita | -2 | -3 | F | 71 | 70 | 67 | - | 208 |
| Taichi Nabetani | -2 | -2 | F | 71 | 69 | 68 | - | 208 | |
| Kensei Hirata | -2 | -1 | F | 69 | 70 | 69 | - | 208 | |
| Tomoyasu Sugiyama | -2 | -1 | F | 72 | 67 | 69 | - | 208 | |
| Tatsunori Shogenji | -2 | ±0 | F | 69 | 69 | 70 | - | 208 | |
| Brad Kennedy | -2 | +1 | F | 68 | 69 | 71 | - | 208 | |
| Yuki Inamori | -2 | +1 | F | 68 | 69 | 71 | - | 208 | |
| Keita Nakajima | -2 | +2 | F | 67 | 69 | 72 | - | 208 | |
| 19 | Takumi Kanaya | -1 | -6 | F | 75 | 70 | 64 | - | 209 |
| Taisei Shimizu | -1 | -5 | F | 71 | 73 | 65 | - | 209 | |
| Jinichiro Kozuma | -1 | -3 | F | 72 | 70 | 67 | - | 209 | |
| Taihei Sato | -1 | -3 | F | 71 | 71 | 67 | - | 209 | |
| Tomoyo Ikemura | -1 | -1 | F | 69 | 71 | 69 | - | 209 | |
| Taiki Yoshida | -1 | ±0 | F | 74 | 65 | 70 | - | 209 | |
| Mikumu Horikawa | -1 | +1 | F | 66 | 72 | 71 | - | 209 | |
| 26 | Taiga Nagano | ±0 | -5 | F | 73 | 72 | 65 | - | 210 |
| Anthony Quayle | ±0 | -1 | F | 71 | 70 | 69 | - | 210 | |
| Mikiya Akutsu | ±0 | +1 | F | 69 | 70 | 71 | - | 210 | |
| Yuta Uetake | ±0 | +3 | F | 68 | 69 | 73 | - | 210 | |
| 30 | Yusaku Miyazato | +1 | -3 | F | 71 | 73 | 67 | - | 211 |
| Terumichi Kakazu | +1 | -2 | F | 68 | 75 | 68 | - | 211 | |
| Daisuke Yasumoto | +1 | +1 | F | 70 | 70 | 71 | - | 211 | |
| Taiga Semikawa | +1 | +1 | F | 71 | 69 | 71 | - | 211 | |
| Akio Sadakata | +1 | +5 | F | 67 | 69 | 75 | - | 211 | |
| 35 | Justin De Los Santos | +2 | -2 | F | 72 | 72 | 68 | - | 212 |
| Yuki Shino | +2 | -2 | F | 74 | 70 | 68 | - | 212 | |
| Shingo Katayama | +2 | ±0 | F | 73 | 69 | 70 | - | 212 | |
| 38 | Shugo Imahira | +3 | +2 | F | 69 | 72 | 72 | - | 213 |
| 39 | Tomohiro Ishizaka | +4 | -1 | F | 69 | 76 | 69 | - | 214 |
| Ryutaro Nagano | +4 | ±0 | F | 72 | 72 | 70 | - | 214 | |
| Yuto Katsumata | +4 | ±0 | F | 73 | 71 | 70 | - | 214 | |
| Ryo Hisatsune | +4 | +3 | F | 68 | 73 | 73 | - | 214 | |
| Yuta Ikeda | +4 | +5 | F | 70 | 69 | 75 | - | 214 | |
| 44 | Hideto Tanihara | +5 | +1 | F | 75 | 69 | 71 | - | 215 |
| Kaito Onishi | +5 | +1 | F | 73 | 71 | 71 | - | 215 | |
| Yuki Kajimura | +5 | +1 | F | 72 | 72 | 71 | - | 215 | |
| Shunya Takeyasu | +5 | +2 | F | 74 | 69 | 72 | - | 215 | |
| Yuto Katsuragawa | +5 | +2 | F | 72 | 71 | 72 | - | 215 | |
| Yuta Kinoshita | +5 | +2 | F | 71 | 72 | 72 | - | 215 | |
| Takashi Ogiso | +5 | +4 | F | 71 | 70 | 74 | - | 215 | |
| 51 | Kenya Nakayama | +6 | +2 | F | 73 | 71 | 72 | - | 216 |
| Hiroki Tanaka | +6 | +2 | F | 72 | 72 | 72 | - | 216 | |
| Sang-Hee Lee | +6 | +4 | F | 69 | 73 | 74 | - | 216 | |
| 54 | Masashi Hidaka | +7 | +2 | F | 71 | 74 | 72 | - | 217 |
| Juvic Pagunsan | +7 | +3 | F | 71 | 73 | 73 | - | 217 | |
| Jigen Serizawa | +7 | +3 | F | 72 | 72 | 73 | - | 217 | |
| Noriyuki Kurogi | +7 | +4 | F | 68 | 75 | 74 | - | 217 | |
| 58 | Young-Han Song | +8 | +4 | F | 70 | 74 | 74 | - | 218 |
| Yujiro Ohori | +8 | +7 | F | 71 | 70 | 77 | - | 218 | |
| 60 | @ Rintaro Nakano | +9 | +8 | F | 70 | 71 | 78 | - | 219 |
| 61 | Hayato Yoshida | +10 | +6 | F | 73 | 71 | 76 | - | 220 |
| Ryo Noro | +10 | +7 | F | 72 | 71 | 77 | - | 220 | |
| 63 | @ Yutaka Toyoshima | +14 | +9 | F | 72 | 73 | 79 | - | 224 |
| 64 | Tomohiro Umeyama | +16 | +11 | F | 74 | 71 | 81 | - | 226 |