【Full Leaderboard】 Update 05/20 15:10
45th Japan Women's Open Golf Championship 2012
| ROUND 3 | @：Amateur player |
| POS | Player | Score | Today | Hole | Rounds | Total | |||
| R1 | R2 | R3 | R4 | ||||||
| 1 | Megumi Kido | +1 | +1 | F | 70 | 74 | 73 | - | 217 |
| Shan-Shan Feng | +1 | +2 | F | 68 | 75 | 74 | - | 217 | |
| 3 | Ayako Uehara | +2 | ±0 | F | 72 | 74 | 72 | - | 218 |
| 4 | In-Bee Park | +3 | -2 | F | 73 | 76 | 70 | - | 219 |
| Ai Miyazato | +3 | -2 | F | 72 | 77 | 70 | - | 219 | |
| 6 | Rui Kitada | +4 | -2 | F | 77 | 73 | 70 | - | 220 |
| Yuri Fudo | +4 | -2 | F | 71 | 79 | 70 | - | 220 | |
| Mika Miyazato | +4 | +1 | F | 72 | 75 | 73 | - | 220 | |
| 9 | Ah-Reum Hwang | +5 | -4 | F | 76 | 77 | 68 | - | 221 |
| Hiromi Mogi | +5 | -1 | F | 75 | 75 | 71 | - | 221 | |
| Ji-Hee Lee | +5 | -1 | F | 73 | 77 | 71 | - | 221 | |
| Teresa Lu | +5 | +3 | F | 72 | 74 | 75 | - | 221 | |
| Jeong Jang | +5 | +2 | F | 74 | 73 | 74 | - | 221 | |
| Na-Ri Kim | +5 | +4 | F | 70 | 75 | 76 | - | 221 | |
| 15 | Hiromi Takesue | +6 | -2 | F | 78 | 74 | 70 | - | 222 |
| Soo-Yun Kang | +6 | -1 | F | 71 | 80 | 71 | - | 222 | |
| Chie Arimura | +6 | -1 | F | 76 | 75 | 71 | - | 222 | |
| Mi-Jeong Jeon | +6 | -1 | F | 74 | 77 | 71 | - | 222 | |
| Miki Sakai | +6 | ±0 | F | 73 | 77 | 72 | - | 222 | |
| Onnarin Sattayabanphot | +6 | ±0 | F | 74 | 76 | 72 | - | 222 | |
| 21 | Na-Yeon Choi | +7 | -2 | F | 77 | 76 | 70 | - | 223 |
| Miki Saiki | +7 | -1 | F | 74 | 78 | 71 | - | 223 | |
| Akane Iijima | +7 | -1 | F | 75 | 77 | 71 | - | 223 | |
| Na-Ri Lee | +7 | +2 | F | 74 | 75 | 74 | - | 223 | |
| In-Kyung Kim | +7 | +3 | F | 74 | 74 | 75 | - | 223 | |
| 26 | Natsu Nagai | +8 | ±0 | F | 76 | 76 | 72 | - | 224 |
| Esther Lee | +8 | ±0 | F | 75 | 77 | 72 | - | 224 | |
| Young Kim | +8 | +1 | F | 75 | 76 | 73 | - | 224 | |
| 29 | Sakura Yokomine | +9 | -1 | F | 79 | 75 | 71 | - | 225 |
| Li-Ying Ye | +9 | ±0 | F | 78 | 75 | 72 | - | 225 | |
| Erika Kikuchi | +9 | +1 | F | 78 | 74 | 73 | - | 225 | |
| Yani Tseng | +9 | +5 | F | 73 | 75 | 77 | - | 225 | |
| Maiko Wakabayashi | +9 | +6 | F | 75 | 72 | 78 | - | 225 | |
| 34 | Momoko Ueda | +10 | +1 | F | 72 | 81 | 73 | - | 226 |
| Yuki Ichinose | +10 | +3 | F | 76 | 75 | 75 | - | 226 | |
| Ji-Woo Lee | +10 | +4 | F | 76 | 74 | 76 | - | 226 | |
| 37 | Jiyai Shin | +11 | ±0 | F | 81 | 74 | 72 | - | 227 |
| Hyun-Ju Shin | +11 | +1 | F | 77 | 77 | 73 | - | 227 | |
| Kumiko Kaneda | +11 | +2 | F | 74 | 79 | 74 | - | 227 | |
| Yuko Fukuda | +11 | +2 | F | 77 | 76 | 74 | - | 227 | |
| Mayu Hattori | +11 | +2 | F | 76 | 77 | 74 | - | 227 | |
| @ Saki Nagamine | +11 | +3 | F | 78 | 74 | 75 | - | 227 | |
| 43 | Yukari Baba | +12 | +1 | F | 76 | 79 | 73 | - | 228 |
| Natsuka Hori | +12 | +3 | F | 79 | 74 | 75 | - | 228 | |
| Da-Ye Na | +12 | +4 | F | 76 | 76 | 76 | - | 228 | |
| Yuko Saito | +12 | +4 | F | 77 | 75 | 76 | - | 228 | |
| Bo-Bae Song | +12 | +4 | F | 75 | 77 | 76 | - | 228 | |
| Maria Iida | +12 | +5 | F | 78 | 73 | 77 | - | 228 | |
| Mihoko Iseri | +12 | +5 | F | 75 | 76 | 77 | - | 228 | |
| 50 | Saiki Fujita | +13 | +3 | F | 75 | 79 | 75 | - | 229 |
| Keiko Sasaki | +13 | +3 | F | 76 | 78 | 75 | - | 229 | |
| Satsuki Oshiro | +13 | +3 | F | 78 | 76 | 75 | - | 229 | |
| Asako Fujimoto | +13 | +3 | F | 78 | 76 | 75 | - | 229 | |
| Erina Hara | +13 | +5 | F | 73 | 79 | 77 | - | 229 | |
| Rikako Morita | +13 | +10 | F | 72 | 75 | 82 | - | 229 | |
| 56 | Shinobu Moromizato | +14 | +4 | F | 78 | 76 | 76 | - | 230 |
| 57 | Junko Omote | +15 | +4 | F | 78 | 77 | 76 | - | 231 |
| 58 | Kaori Oe | +16 | +8 | F | 75 | 77 | 80 | - | 232 |
| 59 | @ Moeno Tan | +17 | +6 | F | 77 | 78 | 78 | - | 233 |
| @ Maria Shinohara | +17 | +8 | F | 78 | 75 | 80 | - | 233 | |