【Full Leaderboard】 Update 10/17 10:39
51st Japan Women's Open Golf Championship 2018
| ROUND 1 | @：Amateur player |
| POS | Player | Score | Today | Hole | Rounds | Total | |||
| R1 | R2 | R3 | R4 | ||||||
| 1 | So-Yeon Ryu | -7 | -7 | F | 65 | - | - | - | 65 |
| 2 | Sayaka Takahashi | -5 | -5 | F | 67 | - | - | - | 67 |
| Phoebe Yao | -5 | -5 | F | 67 | - | - | - | 67 | |
| 4 | Na-Ri Lee | -4 | -4 | F | 68 | - | - | - | 68 |
| Ayaka Watanabe | -4 | -4 | F | 68 | - | - | - | 68 | |
| 6 | Rumi Yoshiba | -3 | -3 | F | 69 | - | - | - | 69 |
| Moeno Tan | -3 | -3 | F | 69 | - | - | - | 69 | |
| Teresa Lu | -3 | -3 | F | 69 | - | - | - | 69 | |
| 9 | Eri Okayama | -2 | -2 | F | 70 | - | - | - | 70 |
| Shiho Oyama | -2 | -2 | F | 70 | - | - | - | 70 | |
| Erika Kikuchi | -2 | -2 | F | 70 | - | - | - | 70 | |
| Chie Arimura | -2 | -2 | F | 70 | - | - | - | 70 | |
| @ Yuna Nishimura | -2 | -2 | F | 70 | - | - | - | 70 | |
| Ha-Neul Kim | -2 | -2 | F | 70 | - | - | - | 70 | |
| @ Ayaka Furue | -2 | -2 | F | 70 | - | - | - | 70 | |
| Hina Arakaki | -2 | -2 | F | 70 | - | - | - | 70 | |
| 17 | Kotone Hori | -1 | -1 | F | 71 | - | - | - | 71 |
| Ayana Kon | -1 | -1 | F | 71 | - | - | - | 71 | |
| Saki Asai | -1 | -1 | F | 71 | - | - | - | 71 | |
| Aoi Onishi | -1 | -1 | F | 71 | - | - | - | 71 | |
| Chae-Young Yoon | -1 | -1 | F | 71 | - | - | - | 71 | |
| Hiroko Azuma | -1 | -1 | F | 71 | - | - | - | 71 | |
| Soo-Yun Kang | -1 | -1 | F | 71 | - | - | - | 71 | |
| Mi-Jeong Jeon | -1 | -1 | F | 71 | - | - | - | 71 | |
| Saiki Fujita | -1 | -1 | F | 71 | - | - | - | 71 | |
| Haruka Morita | -1 | -1 | F | 71 | - | - | - | 71 | |
| Mika Miyazato | -1 | -1 | F | 71 | - | - | - | 71 | |
| Nasa Hataoka | -1 | -1 | F | 71 | - | - | - | 71 | |
| In-Gee Chun | -1 | -1 | F | 71 | - | - | - | 71 | |
| @ Miyu Goto | -1 | -1 | F | 71 | - | - | - | 71 | |
| 31 | Ah-Reum Hwang | ±0 | ±0 | F | 72 | - | - | - | 72 |
| Serena Aoki | ±0 | ±0 | F | 72 | - | - | - | 72 | |
| Lala Anai | ±0 | ±0 | F | 72 | - | - | - | 72 | |
| Min-Young Lee | ±0 | ±0 | F | 72 | - | - | - | 72 | |
| @ Narumi Uetake | ±0 | ±0 | F | 72 | - | - | - | 72 | |
| Sun-Ju Ahn | ±0 | ±0 | F | 72 | - | - | - | 72 | |
| @ Miyu Yamashita | ±0 | ±0 | F | 72 | - | - | - | 72 | |
| 38 | Asuka Kashiwabara | +1 | +1 | F | 73 | - | - | - | 73 |
| Hiromu Ono | +1 | +1 | F | 73 | - | - | - | 73 | |
| Kaori Ohe | +1 | +1 | F | 73 | - | - | - | 73 | |
| Kotono Kozuma | +1 | +1 | F | 73 | - | - | - | 73 | |
| In-Kyung Kim | +1 | +1 | F | 73 | - | - | - | 73 | |
| Megumi Kido | +1 | +1 | F | 73 | - | - | - | 73 | |
| Jiyai Shin | +1 | +1 | F | 73 | - | - | - | 73 | |
| Sarina Kobayashi | +1 | +1 | F | 73 | - | - | - | 73 | |
| Nana Suganuma | +1 | +1 | F | 73 | - | - | - | 73 | |
| @ Yuka Yasuda | +1 | +1 | F | 73 | - | - | - | 73 | |
| Kana Nagai | +1 | +1 | F | 73 | - | - | - | 73 | |
| Sakura Koiwai | +1 | +1 | F | 73 | - | - | - | 73 | |
| Minami Katsu | +1 | +1 | F | 73 | - | - | - | 73 | |
| Yumiko Yoshida | +1 | +1 | F | 73 | - | - | - | 73 | |
| Miyuki Takeuchi | +1 | +1 | F | 73 | - | - | - | 73 | |
| 53 | Sayaka Tsuchida | +2 | +2 | F | 74 | - | - | - | 74 |
| @ Nanako Inagaki | +2 | +2 | F | 74 | - | - | - | 74 | |
| Ai Suzuki | +2 | +2 | F | 74 | - | - | - | 74 | |
| Pei-Ying Tsai | +2 | +2 | F | 74 | - | - | - | 74 | |
| Mamiko Higa | +2 | +2 | F | 74 | - | - | - | 74 | |
| Mayu Hosaka | +2 | +2 | F | 74 | - | - | - | 74 | |
| Ayaka Matsumori | +2 | +2 | F | 74 | - | - | - | 74 | |
| Yoko Maeda | +2 | +2 | F | 74 | - | - | - | 74 | |
| Karis Davidson | +2 | +2 | F | 74 | - | - | - | 74 | |
| Yukari Nishiyama | +2 | +2 | F | 74 | - | - | - | 74 | |
| @ Mayu Wakui | +2 | +2 | F | 74 | - | - | - | 74 | |
| Yukari Baba | +2 | +2 | F | 74 | - | - | - | 74 | |
| Miki Sakai | +2 | +2 | F | 74 | - | - | - | 74 | |
| Hae-Rym Kim | +2 | +2 | F | 74 | - | - | - | 74 | |
| Ritsuko Ryu | +2 | +2 | F | 74 | - | - | - | 74 | |
| Hee-Kyung Bae | +2 | +2 | F | 74 | - | - | - | 74 | |
| Haruka Kudo | +2 | +2 | F | 74 | - | - | - | 74 | |
| @ Riri Sadoyama | +2 | +2 | F | 74 | - | - | - | 74 | |
| Misuzu Narita | +2 | +2 | F | 74 | - | - | - | 74 | |
| 72 | @ Amiyu Ozeki | +3 | +3 | F | 75 | - | - | - | 75 |
| Momoko Ueda | +3 | +3 | F | 75 | - | - | - | 75 | |
| Yoko Ogawa | +3 | +3 | F | 75 | - | - | - | 75 | |
| @ Yuri Yoshida | +3 | +3 | F | 75 | - | - | - | 75 | |
| @ Hinano Hoshikawa | +3 | +3 | F | 75 | - | - | - | 75 | |
| Mami Fukuda | +3 | +3 | F | 75 | - | - | - | 75 | |
| Tsugumi Miyazaki | +3 | +3 | F | 75 | - | - | - | 75 | |
| Rei Matsuda | +3 | +3 | F | 75 | - | - | - | 75 | |
| Minami Hiruta | +3 | +3 | F | 75 | - | - | - | 75 | |
| Hinako Yamauchi | +3 | +3 | F | 75 | - | - | - | 75 | |
| @ Tsubasa Kajitani | +3 | +3 | F | 75 | - | - | - | 75 | |
| Ji-Hee Lee | +3 | +3 | F | 75 | - | - | - | 75 | |
| Asako Fujimoto | +3 | +3 | F | 75 | - | - | - | 75 | |
| Megumi Shimokawa | +3 | +3 | F | 75 | - | - | - | 75 | |
| 86 | Hikari Tanabe | +4 | +4 | F | 76 | - | - | - | 76 |
| Bo-Mee Lee | +4 | +4 | F | 76 | - | - | - | 76 | |
| Naruha Miyata | +4 | +4 | F | 76 | - | - | - | 76 | |
| Mio Kotaki | +4 | +4 | F | 76 | - | - | - | 76 | |
| Shinobu Moromizato | +4 | +4 | F | 76 | - | - | - | 76 | |
| O.Sattaya | +4 | +4 | F | 76 | - | - | - | 76 | |
| Risa Ogusu | +4 | +4 | F | 76 | - | - | - | 76 | |
| 93 | Erika Hara | +5 | +5 | F | 77 | - | - | - | 77 |
| Saki Nagamine | +5 | +5 | F | 77 | - | - | - | 77 | |
| Rieko Sakashita | +5 | +5 | F | 77 | - | - | - | 77 | |
| Fumika Kawagishi | +5 | +5 | F | 77 | - | - | - | 77 | |
| @ Rieru Shibusawa | +5 | +5 | F | 77 | - | - | - | 77 | |
| @ Sae Ogura | +5 | +5 | F | 77 | - | - | - | 77 | |
| Rie Tsuji | +5 | +5 | F | 77 | - | - | - | 77 | |
| Seira Oki | +5 | +5 | F | 77 | - | - | - | 77 | |
| 101 | Sakura Kito | +6 | +6 | F | 78 | - | - | - | 78 |
| Yuko Fukuda | +6 | +6 | F | 78 | - | - | - | 78 | |
| Hyo-Joo Kim | +6 | +6 | F | 78 | - | - | - | 78 | |
| Saki Takeo | +6 | +6 | F | 78 | - | - | - | 78 | |
| @ Minori Iwasaki | +6 | +6 | F | 78 | - | - | - | 78 | |
| @ Suguka Kawanaka | +6 | +6 | F | 78 | - | - | - | 78 | |
| 107 | Eri Joma | +7 | +7 | F | 79 | - | - | - | 79 |
| @ Yuzuki Okubo | +7 | +7 | F | 79 | - | - | - | 79 | |
| Nene Gotoda | +7 | +7 | F | 79 | - | - | - | 79 | |
| Hikaru Yoshimoto | +7 | +7 | F | 79 | - | - | - | 79 | |
| @ Fumie Jo | +7 | +7 | F | 79 | - | - | - | 79 | |
| Momoko Osato | +7 | +7 | F | 79 | - | - | - | 79 | |
| Ayano Yasuda | +7 | +7 | F | 79 | - | - | - | 79 | |
| @ Hana Chiba | +7 | +7 | F | 79 | - | - | - | 79 | |
| 115 | Yumiko Baba | +8 | +8 | F | 80 | - | - | - | 80 |
| Mayu Hattori | +8 | +8 | F | 80 | - | - | - | 80 | |
| @ Hanane Nagashima | +8 | +8 | F | 80 | - | - | - | 80 | |
| 118 | Juria Kurata | +9 | +9 | F | 81 | - | - | - | 81 |
| Yoshimi Koda | +9 | +9 | F | 81 | - | - | - | 81 | |
| Miki Nishiyama | +9 | +9 | F | 81 | - | - | - | 81 | |