【Full Leaderboard】 Update 10/17 10:40
51st Japan Women's Open Golf Championship 2018
| ROUND 4 | @：Amateur player |
| POS | Player | Score | Today | Hole | Rounds | Total | Prize | |||
| R1 | R2 | R3 | R4 | |||||||
| 1 | So-Yeon Ryu | -15 | -5 | F | 65 | 72 | 69 | 67 | 273 | ￥ 28,000,000 |
| 2 | Nasa Hataoka | -12 | -4 | F | 71 | 66 | 71 | 68 | 276 | ￥ 15,400,000 |
| 3 | Erika Kikuchi | -10 | ±0 | F | 70 | 69 | 67 | 72 | 278 | ￥ 10,780,000 |
| 4 | Phoebe Yao | -7 | +2 | F | 67 | 68 | 72 | 74 | 281 | ￥ 7,000,000 |
| 5 | Eri Okayama | -5 | -3 | F | 70 | 70 | 74 | 69 | 283 | ￥ 4,993,333 |
| Chae-Young Yoon | -5 | -2 | F | 71 | 68 | 74 | 70 | 283 | ￥ 4,993,333 | |
| Teresa Lu | -5 | +1 | F | 69 | 69 | 72 | 73 | 283 | ￥ 4,993,333 | |
| 8 | @ Miyu Goto | -4 | +1 | F | 71 | 67 | 73 | 73 | 284 | - |
| Mika Miyazato | -4 | +1 | F | 71 | 69 | 71 | 73 | 284 | ￥ 3,360,000 | |
| Ayaka Watanabe | -4 | +1 | F | 68 | 72 | 71 | 73 | 284 | ￥ 3,360,000 | |
| 11 | Lala Anai | -3 | -1 | F | 72 | 70 | 72 | 71 | 285 | ￥ 2,440,666 |
| Shiho Oyama | -3 | -1 | F | 70 | 73 | 71 | 71 | 285 | ￥ 2,440,666 | |
| Hina Arakaki | -3 | +2 | F | 70 | 71 | 70 | 74 | 285 | ￥ 2,440,666 | |
| 14 | Aoi Onishi | -2 | -2 | F | 71 | 72 | 73 | 70 | 286 | ￥ 1,582,000 |
| Sayaka Takahashi | -2 | -1 | F | 67 | 74 | 74 | 71 | 286 | ￥ 1,582,000 | |
| Ji-Hee Lee | -2 | -1 | F | 75 | 70 | 70 | 71 | 286 | ￥ 1,582,000 | |
| Asako Fujimoto | -2 | -1 | F | 75 | 69 | 71 | 71 | 286 | ￥ 1,582,000 | |
| Mi-Jeong Jeon | -2 | ±0 | F | 71 | 69 | 74 | 72 | 286 | ￥ 1,582,000 | |
| Ai Suzuki | -2 | +1 | F | 74 | 69 | 70 | 73 | 286 | ￥ 1,582,000 | |
| Haruka Morita | -2 | +3 | F | 71 | 69 | 71 | 75 | 286 | ￥ 1,582,000 | |
| 21 | Ritsuko Ryu | -1 | -2 | F | 74 | 71 | 72 | 70 | 287 | ￥ 1,239,000 |
| Na-Ri Lee | -1 | +2 | F | 68 | 71 | 74 | 74 | 287 | ￥ 1,239,000 | |
| 23 | @ Tsubasa Kajitani | ±0 | ±0 | F | 75 | 70 | 71 | 72 | 288 | - |
| Jiyai Shin | ±0 | ±0 | F | 73 | 72 | 71 | 72 | 288 | ￥ 1,148,000 | |
| Mami Fukuda | ±0 | ±0 | F | 75 | 72 | 69 | 72 | 288 | ￥ 1,148,000 | |
| Serena Aoki | ±0 | +2 | F | 72 | 72 | 70 | 74 | 288 | ￥ 1,148,000 | |
| 27 | Yumiko Yoshida | +1 | -2 | F | 73 | 73 | 73 | 70 | 289 | ￥ 1,036,000 |
| Ah-Reum Hwang | +1 | +2 | F | 72 | 68 | 75 | 74 | 289 | ￥ 1,036,000 | |
| Min-Young Lee | +1 | +2 | F | 72 | 73 | 70 | 74 | 289 | ￥ 1,036,000 | |
| In-Gee Chun | +1 | +2 | F | 71 | 74 | 70 | 74 | 289 | ￥ 1,036,000 | |
| Chie Arimura | +1 | +3 | F | 70 | 71 | 73 | 75 | 289 | ￥ 1,036,000 | |
| 32 | Saki Asai | +2 | +1 | F | 71 | 74 | 72 | 73 | 290 | ￥ 938,000 |
| @ Ayaka Furue | +2 | +1 | F | 70 | 74 | 73 | 73 | 290 | - | |
| Saiki Fujita | +2 | -2 | F | 71 | 75 | 74 | 70 | 290 | ￥ 938,000 | |
| 35 | Kaori Ohe | +3 | +3 | F | 73 | 68 | 75 | 75 | 291 | ￥ 854,000 |
| Moeno Tan | +3 | +4 | F | 69 | 68 | 78 | 76 | 291 | ￥ 854,000 | |
| Nana Suganuma | +3 | +1 | F | 73 | 70 | 75 | 73 | 291 | ￥ 854,000 | |
| Yoko Maeda | +3 | ±0 | F | 74 | 72 | 73 | 72 | 291 | ￥ 854,000 | |
| Rumi Yoshiba | +3 | +4 | F | 69 | 73 | 73 | 76 | 291 | ￥ 854,000 | |
| Hee-Kyung Bae | +3 | ±0 | F | 74 | 70 | 75 | 72 | 291 | ￥ 854,000 | |
| Soo-Yun Kang | +3 | +4 | F | 71 | 72 | 72 | 76 | 291 | ￥ 854,000 | |
| Karis Davidson | +3 | -1 | F | 74 | 71 | 75 | 71 | 291 | ￥ 854,000 | |
| Miki Sakai | +3 | -2 | F | 74 | 73 | 74 | 70 | 291 | ￥ 854,000 | |
| 44 | Kotono Kozuma | +4 | -1 | F | 73 | 73 | 75 | 71 | 292 | ￥ 784,000 |
| 45 | @ Rieru Shibusawa | +5 | +3 | F | 77 | 70 | 71 | 75 | 293 | - |
| Yukari Baba | +5 | +5 | F | 74 | 72 | 70 | 77 | 293 | ￥ 742,000 | |
| Kana Nagai | +5 | +3 | F | 73 | 73 | 72 | 75 | 293 | ￥ 742,000 | |
| Mayu Hosaka | +5 | +1 | F | 74 | 73 | 73 | 73 | 293 | ￥ 742,000 | |
| Misuzu Narita | +5 | +1 | F | 74 | 71 | 75 | 73 | 293 | ￥ 742,000 | |
| Kotone Hori | +5 | ±0 | F | 71 | 75 | 75 | 72 | 293 | ￥ 742,000 | |
| 51 | Momoko Ueda | +6 | +4 | F | 75 | 71 | 72 | 76 | 294 | ￥ 679,000 |
| Asuka Kashiwabara | +6 | +3 | F | 73 | 71 | 75 | 75 | 294 | ￥ 679,000 | |
| Bo-Mee Lee | +6 | +3 | F | 76 | 69 | 74 | 75 | 294 | ￥ 679,000 | |
| Saki Takeo | +6 | +2 | F | 78 | 69 | 73 | 74 | 294 | ￥ 679,000 | |
| 55 | @ Yuna Nishimura | +7 | +5 | F | 70 | 76 | 72 | 77 | 295 | - |
| @ Yuka Yasuda | +7 | +5 | F | 73 | 69 | 76 | 77 | 295 | - | |
| 57 | Ha-Neul Kim | +8 | +3 | F | 70 | 77 | 74 | 75 | 296 | ￥ 637,000 |
| Saki Nagamine | +8 | +3 | F | 77 | 68 | 76 | 75 | 296 | ￥ 637,000 | |
| 59 | @ Yuri Yoshida | +9 | +3 | F | 75 | 72 | 75 | 75 | 297 | - |
| @ Miyu Yamashita | +9 | -1 | F | 72 | 73 | 81 | 71 | 297 | - | |
| 61 | Megumi Kido | +10 | +5 | F | 73 | 73 | 75 | 77 | 298 | ￥ 609,000 |
| Sarina Kobayashi | +10 | +3 | F | 73 | 74 | 76 | 75 | 298 | ￥ 609,000 | |
| 63 | Sayaka Tsuchida | +13 | +4 | F | 74 | 71 | 80 | 76 | 301 | ￥ 588,000 |
| 64 | Minami Katsu | +14 | +5 | F | 73 | 74 | 78 | 77 | 302 | ￥ 574,000 |