Round of 64 07/18/2012 | Round of 32 07/19/2012 | Round of 16 07/19/2012 | Quarterfinal 07/20/2012 | Semifinal 07/20/2012 | Final 07/21/2012 | Winner | |  |  | | 1 | Ariya Jutanugarn, Thailand | 142 | | | 64 | Ji Eun Baik, Newnan, Ga. | 159 |  | |
| | | | | | | |  |  | | 32 | Minjia Luo, San Diego, Calif. | 155 | | | 33 | Katelyn Dambaugh, Goose Creek, S.C. | 155 |  | |
| |  |  | | 16 | Amy Lee, Brea, Calif. | 150 | | | 49 | Jennifer Yu, Huntington Beach, Calif. | 157 |  | |
| | |  |  | | 17 | Ashlan Ramsey, Milledgeville, Ga. | 151 | | | 48 | Danielle Lee, La Mirada, Calif. | 157 |  | |
| |  |  | | 8 | Casie Cathrea, Livermore, Calif. | 148 | | | 57 | Samantha Wagner, Windermere, Fla. | 158 |  | |
| | | |  |  | | 25 | Karen Chung, Livingston, N.J. | 152 | | | 40 | Courtney Dow, Frisco, Texas | 156 |  | |
| |  |  | | 9 | Lilia Kha-Tu Vu, Fountain Valley, Calif. | 148 | | | 56 | Alice Jeong, Gardena, Calif. | 158 |  | |
| | |  |  | | 24 | Anne Freman, Las Vegas, Nev. | 152 | | | 41 | Isabella Skinner, Cumming, Ga. | 157 |  | |
| |  |  | | 4 | Jordan Ferreira, University Place, Wash. | 146 | | | 61 | Rinko Mitsunaga, Roswell, Ga. | 159 |  | |
| | | | |  |  | | 29 | Shawn Rennegarbe, Addieville, Ill. | 154 | | | 36 | Bryana Nguyen, Columbia, Md. | 156 |  | |
| |  |  | | 13 | Jisoo Keel, Canada | 150 | | | 52 | Erica Herr, New Hope, Pa. | 158 |  | |
| | |  |  | | 20 | Anne Cheng, Torrance, Calif. | 152 | | | 45 | Kelli Murphy, Elgin, S.C. | 157 |  | |
| |  |  | | 5 | Casey Danielson, Osceola, Wis. | 147 | | | 60 | Stephanie Lau, Fullerton, Calif. | 158 |  | |
| | | |  |  | | 28 | Kathleen Gallagher, Greenwood, Miss. | 154 | | | 37 | Megan Khang, Rockland, Mass. | 156 |  | |
| |  |  | | 12 | Minjee Lee, Australia | 150 | | | 53 | Taylor Totland, Tinton Falls, N.J. | 158 |  | |
| | |  |  | | 21 | Mika Liu, Beverly Hills, Calif. | 152 | | | 44 | Ju Hee Bae, Chantilly, Va. | 157 |  | |
| |  |  | | 2 | Lydia Ko, New Zealand | 145 | | | 63 | Mikayla Harmon, Gilbert, Ariz. | 159 |  | |
| | | | | |  |  | | 31 | Hee Wook Choi, San Diego, Calif. | 154 | | | 34 | Cha Cha Willhoite, Palm Desert, Calif. | 156 |  | |
| |  |  | | 15 | Nicole Morales, South Salem, N.Y. | 150 | | | 50 | Lauren Johnson, Chattanooga, Tenn. | 157 |  | |
| | |  |  | | 18 | Kathleen Scavo, Benicia, Calif. | 151 | | | 47 | Lindsey McCurdy, Kyle, Texas | 157 |  | |
| |  |  | | 7 | Brooke Mackenzie Henderson, Canada | 148 | | | 58 | Gabby Barker, Caldwell, Idaho | 158 |  | |
| | | |  |  | | 26 | McKenzie Neisen, New Prague, Minn. | 153 | | | 39 | Summar Roachell, Conway, Ark. | 156 |  | |
| |  |  | | 10 | Brogan McKinnon, Canada | 148 | | | 55 | Euna Pak, Irvine, Calif. | 158 |  | |
| | |  |  | | 23 | Yueer Feng, Orlando, Fla. | 152 | | | 42 | Gabriella Then, Rancho Cucamonga, Calif. | 157 |  | |
| |  |  | | 3 | Annie Park, Levittown, N.Y. | 146 | | | 62 | Julia Beck, Austin, Texas | 159 |  | |
| | | | |  |  | | 30 | Yu Liu, Ppls Rep. of China | 154 | | | 35 | Lyberty Anderson, Chesterfield, Va. | 156 |  | |
| |  |  | | 14 | Su-Hyun Oh, Australia | 150 | | | 51 | Lydia Choi, Beverly Hills, Calif. | 158 |  | |
| | |  |  | | 19 | Alison Lee, Valencia, Calif. | 152 | | | 46 | Maddie Szeryk, Allen, Texas | 157 |  | |
| |  |  | | 6 | Marijosse Navarro, Mexico | 147 | | | 59 | Bailey Tardy, Norcross, Ga. | 158 |  | |
| | | |  |  | | 27 | Lauren Diaz-Yi, Thousand Oaks, Calif. | 153 | | | 38 | Haley Mills, Tyler, Texas | 156 |  | |
| |  |  | | 11 | Elisabeth Bernabe, Anaheim Hills, Calif. | 150 | | | 54 | Maria Jose Fassi, Mexico | 158 |  | |
| | |  |  | | 22 | Allisen Corpuz, Honolulu, Hawaii | 152 | | | 43 | Alexandra Kaui, Kapolei, Hawaii | 157 |  | |
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