| Serie 1 |
| Florencia De La Sotta Garcia | Los Alerces | 1 | 12.62 | 2 q |
| Matilde Medina Barra | Instituto Inglés de Rancagua | 2 | 12.72 | 3 q |
| Alejandra Valentina Chourio Rosales | Liceo TĂ©cnico San Miguel | 5 | 12.91 | 6 q |
| Josefina GarcĂa-Huidobro Cartwright | Everest | 4 | 13.33 | 11 |
| Amalia Castillo Alcalde | Los Alerces | 7 | 13.55 | 12 |
| Amalia Torres Rengifo | Santa Ăšrsula | 3 | 15.27 | 18 |
| Fernanda Puelma Poblete | Saint Gabriel's School | 6 | 16.67 | 19 |
| Serie 2 |
| Sofia Alverdi Alessandrini | Cumbres | 2 | 12.20 | 1 q |
| Magdalena GarcĂa-Huidobro Cartwright | Everest | 7 | 12.77 | 4 q |
| Mercedes Maria Saez Joannon | Los Andes | 6 | 13.65 | 13 |
| Maria Jose Montero Silva | Huelén | 5 | 14.88 | 17 |
| Juanita DĂ©lano PĂ©rez | Santa Ăšrsula | 4 | 20.62 | 20 |
| Serie 3 |
| SofĂa Irribarren Letelier | Everest | 7 | 12.89 | 5 q |
| Francisca Thienel Capilla | Del Sagrado CorazĂłn - Apoquindo | 3 | 13.03 | 8 q |
| Maria De La Luz Zuñiga Errázuriz | Huelén | 5 | 13.17 | 9 |
| LucĂa Figueroa Gil | Nazaret | 4 | 14.02 | 14 |
| Laura Silva Ried | Los Andes | 1 | 14.10 | 15 |
| Rosario Castillo Birkle | Saint Gabriel's School | 2 | DNS | |
| Ana MarĂa Leyton Vial | Cumbres | 6 | DNS | |
| Serie 4 |
| Amparo Silva Wormull | Cumbres | 4 | 12.93 | 7 q |
| Valentina GarcĂa Mardones | Los Alerces | 3 | 13.17 | 10 |
| Maria Gracia Grebe Errazuriz | Los Andes | 7 | 14.17 | 16 |
| Paula Mahave La Rivera | Del Sagrado CorazĂłn - Apoquindo | 2 | DNF | |
| Isidora Sarquis Mora | Saint Gabriel's School | 5 | DNS | |
| Laura Soumastre Musre | Saint George's College | 6 | DNS | |
