【Full Leaderboard】 Update 08/30 11:36
105th Japan Amateur Golf Championship 2021
| ROUND 3 | ★：Exempt player |
| POS | Player | Score | Today | Hole | Rounds | Total | |||
| R1 | R2 | R3 | R4 | ||||||
| 1 | ★ Keita Nakajima | -10 | -1 | F | 72 | 63 | 71 | - | 206 |
| 2 | ★ Taichiro Ideriha | -7 | +2 | F | 68 | 67 | 74 | - | 209 |
| 3 | ★ Kosuke Suzuki | -4 | +1 | F | 69 | 70 | 73 | - | 212 |
| 4 | Shota Ueki | -3 | -1 | F | 70 | 72 | 71 | - | 213 |
| Shintaro Miyagi | -3 | ±0 | F | 71 | 70 | 72 | - | 213 | |
| Sota Furukawa | -3 | ±0 | F | 70 | 71 | 72 | - | 213 | |
| Kensei Hirata | -3 | +1 | F | 70 | 70 | 73 | - | 213 | |
| ★ Taiga Semikawa | -3 | +4 | F | 72 | 65 | 76 | - | 213 | |
| 9 | ★ Taiga Sugihara | -2 | -1 | F | 73 | 70 | 71 | - | 214 |
| Shun Niimura | -2 | +1 | F | 72 | 69 | 73 | - | 214 | |
| Daiya Suzuki | -2 | +4 | F | 69 | 69 | 76 | - | 214 | |
| Yuta Sugiura | -2 | +4 | F | 69 | 69 | 76 | - | 214 | |
| Ryuta Suzuki | -2 | +4 | F | 68 | 70 | 76 | - | 214 | |
| 14 | Tatsuaki Mizuta | -1 | +3 | F | 71 | 69 | 75 | - | 215 |
| ★ Riki Kawamoto | -1 | +4 | F | 71 | 68 | 76 | - | 215 | |
| 16 | ★ Tsubasa Ukita | ±0 | +1 | F | 73 | 70 | 73 | - | 216 |
| Kohei Okada | ±0 | +1 | F | 72 | 71 | 73 | - | 216 | |
| Itsuki Kurokawa | ±0 | +2 | F | 69 | 73 | 74 | - | 216 | |
| Naoki Uchida | ±0 | +3 | F | 72 | 69 | 75 | - | 216 | |
| Shu Fukuzumi | ±0 | -1 | F | 74 | 71 | 71 | - | 216 | |
| Koshiro Maeda | ±0 | +3 | F | 69 | 72 | 75 | - | 216 | |
| Keiichiro Takata | ±0 | +5 | F | 73 | 66 | 77 | - | 216 | |
| Chisato Takamiya | ±0 | -2 | F | 73 | 73 | 70 | - | 216 | |
| 24 | ★ Gaku Tsukamoto | +1 | +4 | F | 73 | 68 | 76 | - | 217 |
| Ryunosuke Furukawa | +1 | +4 | F | 71 | 70 | 76 | - | 217 | |
| Tono Kusuda | +1 | ±0 | F | 73 | 72 | 72 | - | 217 | |
| Masato Sumiuchi | +1 | +4 | F | 70 | 71 | 76 | - | 217 | |
| 28 | Tokiya Ito | +2 | +1 | F | 72 | 73 | 73 | - | 218 |
| Kodai Ueda | +2 | +1 | F | 75 | 70 | 73 | - | 218 | |
| 30 | Wataru Ishikawa | +3 | +5 | F | 71 | 71 | 77 | - | 219 |
| Koki Maeda | +3 | +4 | F | 71 | 72 | 76 | - | 219 | |
| ★ Ren Yonezawa | +3 | +4 | F | 73 | 70 | 76 | - | 219 | |
| Hikaru Yuhara | +3 | +5 | F | 72 | 70 | 77 | - | 219 | |
| Akira Kasahara | +3 | +3 | F | 71 | 73 | 75 | - | 219 | |
| Kosei Takeyama | +3 | +4 | F | 73 | 70 | 76 | - | 219 | |
| Ichiro Tanimoto | +3 | +2 | F | 74 | 71 | 74 | - | 219 | |
| 37 | Tomoya Okuda | +4 | +6 | F | 70 | 72 | 78 | - | 220 |
| ★ Misaki Yoshizawa | +4 | +5 | F | 75 | 68 | 77 | - | 220 | |
| Seichu Hiramoto | +4 | +6 | F | 73 | 69 | 78 | - | 220 | |
| Koki Tomita | +4 | +3 | F | 72 | 73 | 75 | - | 220 | |
| 41 | Shoon Kobayashi | +5 | +6 | F | 69 | 74 | 78 | - | 221 |
| Minato Oshima | +5 | +6 | F | 75 | 68 | 78 | - | 221 | |
| Ryuei Sugita | +5 | +7 | F | 72 | 70 | 79 | - | 221 | |
| Shoto Yoshikawa | +5 | +5 | F | 75 | 69 | 77 | - | 221 | |
| Motoki Hosoya | +5 | +4 | F | 71 | 74 | 76 | - | 221 | |
| Taiga Kobayashi | +5 | +4 | F | 78 | 67 | 76 | - | 221 | |
| Jumpei Idogawa | +5 | +3 | F | 73 | 73 | 75 | - | 221 | |
| 48 | Minagi Tamaki | +6 | +8 | F | 71 | 71 | 80 | - | 222 |
| ★ Haruto Toge | +6 | +5 | F | 71 | 74 | 77 | - | 222 | |
| Toshiki Bando | +6 | +4 | F | 76 | 70 | 76 | - | 222 | |
| Ryuji Nozawa | +6 | +11 | F | 70 | 69 | 83 | - | 222 | |
| Mitsuki Nakamura | +6 | +4 | F | 73 | 73 | 76 | - | 222 | |
| Shota Yoshimoto | +6 | +4 | F | 77 | 69 | 76 | - | 222 | |
| 54 | Yuki Abo | +7 | +8 | F | 71 | 72 | 80 | - | 223 |
| Taishi Moto | +7 | +9 | F | 73 | 69 | 81 | - | 223 | |
| Suguru Shimoke | +7 | +6 | F | 71 | 74 | 78 | - | 223 | |
| Ryusei Harata | +7 | +6 | F | 72 | 73 | 78 | - | 223 | |
| Koki Yoshida | +7 | +5 | F | 72 | 74 | 77 | - | 223 | |
| Yuma Tanaka | +7 | +5 | F | 73 | 73 | 77 | - | 223 | |
| 60 | Rintaro Nakano | +8 | +7 | F | 72 | 73 | 79 | - | 224 |
| 61 | Shuta Hanamura | +10 | +13 | F | 74 | 67 | 85 | - | 226 |
| Koki Kurokawa | +10 | +8 | F | 71 | 75 | 80 | - | 226 | |
| Tomoyuki Kuroda | +10 | +8 | F | 78 | 68 | 80 | - | 226 | |
| 64 | Dainoshin Kudo | +11 | +10 | F | 71 | 74 | 82 | - | 227 |
| 65 | Ko Ono | +12 | +14 | F | 72 | 70 | 86 | - | 228 |
| 66 | Shinnosuke Tanaka | +13 | +11 | F | 76 | 70 | 83 | - | 229 |