| Serie 1 |
| Jacinta Cornejo Lopez | Saint George's College | 4 | 12.47 | 1 q |
| María Trinidad Barros Barceló | Everest | 5 | 14.09 | 4 q |
| Maria Gracia Sanfuentes Zamorano | Del Sagrado Corazón - Apoquindo | 3 | 14.35 | 5 q |
| Catalina Maria Tyler Alori | Huelén | 7 | 14.43 | 6 q |
| Laura Canales Barriga | Nazaret | 6 | 14.93 | 10 |
| Clara Terrazas A | The Grange School | 1 | DNF | |
| Serie 2 |
| Amparo Valdes Iturrate | Santa Cruz - Chicureo | 4 | 13.38 | 2 q |
| Sofia Guarda Montserrat | San Benito | 3 | 14.45 | 7 q |
| Fernanda Wagner Bettancourt | Alemán de Santiago | 7 | 15.69 | 14 |
| Ailin Cayulao Cerda | Saint Gabriel's School | 8 | 15.99 | 15 |
| Laura Quaas Navarro | Alemán de Santiago | 1 | 17.53 | 16 |
| Pia Fernendez Cruz | Nazaret | 2 | DNS | |
| Dominga Costa Lorenzini | SSCC Manquehue | 5 | DNS | |
| Blanca Schmidt Liepins | The Newland School | 6 | DNS | |
| Serie 3 |
| Laura Horlacher Cortes | Alemán de Santiago | 2 | 13.85 | 3 q |
| Amalia Cruzat Vial | Los Andes | 5 | 14.50 | 8 q |
| Maria Magdalena Wilke Valdes | Los Andes | 3 | 14.63 | 9 |
| Sylvia Maria Bertelsen Toso | Everest | 1 | 15.30 | 11 |
| Olivia Moreno Gómez | San Benito | 4 | 15.64 | 12 |
| Florencia Badilla Pérez | Mayor - Peñalolen | 6 | 15.65 | 13 |
