| Serie 1 |
| Jacinta Arteaga Amenabar | Los Alerces | 2 | 12.30 | 1 q |
| Javiera Paz Contreras Gubbins | Del Sagrado Corazón - Apoquindo | 1 | 12.40 | 2 q |
| Helena Ortiz Von Riegen | SSCC Manquehue | 5 | 12.57 | 3 q |
| Sofía Plubins Vergara | Nazaret | 4 | 12.92 | 4 q |
| Maria Antonieta Valenzuela Browne | Los Andes | 6 | 13.47 | 5 q |
| Maria Cristina Fernandez Peñafiel | SSCC Manquehue | 3 | 13.58 | 6 |
| Antonia Rozas Arellano | Saint George's College | 7 | | |
| Francisca Valencia Madariaga | Del Sagrado Corazón - Apoquindo | 8 | | |
| Serie 2 |
| Maria Regina Silva Ried | Los Andes | 5 | 12.67 | 1 q |
| Elisa Claro Grossetete | San Anselmo | 7 | 13.23 | 2 q |
| Maria Ignacia Cortes Gazmuri | Del Sagrado Corazón - Apoquindo | 2 | 13.44 | 3 q |
| Bernardita Mckay Garcia | Los Alerces | 8 | 13.89 | 4 |
| Maria Josefina Perez De Arce Lira | Los Andes | 6 | 13.92 | 5 |
| Magdalena Riesco Valdés | Santa Úrsula | 1 | 14.24 | 6 |
