| Serie 1 |
| Consuelo Antonia Antunez Aravena | Saint George's College | 1 | 10.59 | 2 q |
| Sara Decombe Izquierdo | Nazaret | 7 | 10.94 | 7 q |
| Colomba Undurraga Carey | Everest | 6 | 11.13 | 11 |
| Martina Mariné Durandeau | Cumbres | 5 | 11.14 | 12 |
| Maria Gracia Avaria Tarud | Los Alerces | 4 | 11.21 | 13 |
| Jacinta Dominguez Urrejola | San Anselmo | 2 | 11.25 | 14 |
| Sofia Ignacia Hormazabal Jarur | Padre Hurtado de Chillán | 3 | 11.29 | 16 |
| Maria Jesus Iñiguez Besa | Los Andes | 8 | 11.33 | 17 |
| Serie 2 |
| Simone Montegu Montanari | SSCC Manquehue | 5 | 10.86 | 5 q |
| Andrea Quintana Manosalva | Saint George's College | 8 | 11.10 | 8 q |
| Martina Constanza Pradenas Alvarez | Montessori de Talca | 6 | 11.38 | 19 |
| Mariana Ovalle Valdes | Los Andes | 7 | 11.39 | 20 |
| Eileen Price García | Cumbres | 1 | 12.07 | 24 |
| Tamara Diaz Ortiz | Padre Hurtado de Chillán | 4 | 12.66 | 25 |
| Josefa Fernandez Rodriguez | Everest | 2 | | |
| Matilde Vicuña Watkins | San Anselmo | 3 | | |
| Serie 3 |
| Florencia Colomba Tavonatti Gómez | Nazaret | 7 | 11.10 | 9 q |
| Ignacia Vigil Vasquez | Everest | 6 | 11.11 | 10 |
| Lucia Herrera Guzman | Los Alerces | 3 | 11.41 | 21 |
| Antonia Corces Canales | SSCC Manquehue | 2 | 11.46 | 22 |
| Constanza Garín Giacoman | Cumbres | 4 | 11.48 | 23 |
| Francisca Carolina Uyarte Mejias | Padre Hurtado de Chillán | 5 | 12.78 | 26 |
| Anthonella Bascuñán Vega | Montessori de Talca | 8 | | |
| Serie 4 |
| Josefina Silva Schmidt | La Maisonnette | 7 | 10.42 | 1 q |
| Camila Tavonatti Gómez | Nazaret | 3 | 10.61 | 3 q |
| Constanza Mardonez Eyzaguirre | Saint George's College | 6 | 10.71 | 4 q |
| Maria Ignacia Ruiz Moreno Lagos | Los Andes | 5 | 10.92 | 6 q |
| Agustina Moreno Mazzarelli | SSCC Manquehue | 8 | 11.25 | 15 |
| Matilde Fernandez Morande | Los Alerces | 2 | 11.35 | 18 |
| Rosario Guadalupe Figueroa Delano | San Anselmo | 4 | | |
