| Serie 1 |
| Jacinta Olivos Eyzaguirre | San Isidro | | 1:05.91 (CR) | 1 |
| Ambar Colomba Reyes Valdes | Saint James School | | 1:08.89 | 2 |
| Isidora Urbina Carrasco | Instituto Alonso de Ercilla | | 1:10.89 | 3 |
| Jacinta Fornes De La Fuente | Maitenes | | 1:13.73 | 4 |
| Laura Rios Roa | Instituto Alonso de Ercilla | | 1:14.51 | 5 |
| Amparo Daruich Ffrench-Davis | Campanario - Buin | | 1:17.39 | 6 |
| Magdalena Paz Orellana Merino | Campanario - Buin | | 1:17.39 | 7 |
| Maite Zegers Muñoz | The Angel's School | | 1:18.80 | 8 |
| Sofia Victoria Morales Rojas | Saint James School | | 1:18.89 | 9 |
| Lucía Larroulet Montero | Maitenes | | | |
| Maria Colomba Gualda Urruticoechea | San Isidro | | | |
| Rayen Veliz Illezca | The Angel's School | | | |
