| Serie 1 |
| María Gracia Pecchenino Larrain | Huelén | 8 | 11.22 | 4 q |
| Angela Mardonez Eyzaguirre | Saint George's College | 6 | 11.52 | 8 q |
| Maria Jesús Castro Gómez | Del Sagrado Corazón - Apoquindo | 4 | 11.74 | 13 |
| Elena Vial Barros | Los Andes | 3 | 11.81 | 17 |
| Dominga Larraín Márquez | San Anselmo | 7 | 11.96 | 21 |
| Sofia Tagle Reyman | SSCC Manquehue | 2 | 12.79 | 30 |
| Elisa Etcheverria Bustamante | San Anselmo | 5 | | |
| Serie 2 |
| Jacinta Silva Labbe | Huelén | 3 | 11.43 | 6 q |
| Matilde Lecaros Egaña | Villa María Academy | 2 | 11.70 | 11 |
| Magdalena Ponce Foster | Huelén | 5 | 11.74 | 14 |
| Laura Barroilhet Piraino | Villa María Academy | 8 | 11.98 | 22 |
| Javiera Davidson Landon | SSCC Manquehue | 6 | 12.15 | 24 |
| Ana Martinez Haga | Los Andes | 7 | 12.16 | 25 |
| Kerry Joo Liao | Instituto Alonso de Ercilla | 4 | | |
| Serie 3 |
| Sara Bravo Errazuriz | San Benito | 3 | 11.39 | 5 q |
| Maria Gracia Sanfuentes Zamorano | Del Sagrado Corazón - Apoquindo | 2 | 11.79 | 15 |
| Isidora Fernanda Zamudio Marquez | Instituto Alonso de Ercilla | 7 | 11.94 | 20 |
| Sofia Emilia Ordaz Etchegaray | Del Sagrado Corazón - Apoquindo | 4 | 12.05 | 23 |
| Maite Niedermayr Cardemil | Padre Hurtado y Juanita de los Andes | 8 | 12.35 | 28 |
| Ana Hurtado Vial | Los Alerces | 5 | 12.50 | 29 |
| Gabriela Antonia Garcia Salazar | Instituto Alonso de Ercilla | 6 | | |
| Serie 4 |
| Laura Sagredo Pérez | Saint George's College | 4 | 11.18 | 3 q |
| Ma Loreto Bunout Miquel | Everest | 7 | 11.47 | 7 q |
| Sylvia Maria Bertelsen Toso | Everest | 5 | 11.57 | 10 |
| Alejandra Vial Vial | Los Andes | 2 | 11.71 | 12 |
| Elisa Del Rio Ibañez | Everest | 6 | 12.16 | 26 |
| Juanita Guerrero Carvallo | San Benito | 3 | 12.25 | 27 |
| Catalina Peralta Aravena | Padre Hurtado y Juanita de los Andes | 8 | 12.91 | 31 |
| Serie 5 |
| Leonor Ferreiro Hurtado | Saint George's College | 7 | 11.02 | 1 q |
| Elisa Aguado Riquelme | San Benito | 3 | 11.05 | 2 q |
| María Claro Grossetete | San Anselmo | 8 | 11.55 | 9 |
| Martina Rodríguez Fernández | Villa María Academy | 5 | 11.80 | 16 |
| Dominga Ovalle Tocornal | Los Alerces | 4 | 11.81 | 18 |
| Luisa Molina Demaria | Los Alerces | 6 | 11.89 | 19 |
