| Serie 1 |
| Isabel Lampasona Humphreys | Saint George's College | 4 | 11.30 | 3 q |
| Isidora Verni Gimeno | SSCC Manquehue | 1 | 11.47 | 6 q |
| Delia Honorato Alcalde | Huelén | 5 | 11.79 | 13 |
| Javiera Ignacia Rojas Jofré | San Benito | 2 | 11.98 | 20 |
| Ines Martin Bernaldo De Quiros | Lycée Antoine de Saint-Exupéry | 3 | 12.85 | 25 |
| Sofía Reyes Cerda | Santa Úrsula | 6 | DNS | |
| Serie 2 |
| Catalina Corrada Simian | Lycée Antoine de Saint-Exupéry | 1 | 11.43 (11.4300) | 4 q |
| Amparo Cerda Cornejo | Saint George's College | 6 | 11.58 (11.5800) | 9 |
| Antonia Vargas Vives | SSCC Manquehue | 5 | 11.67 | 12 |
| Rosario Del Carmen Spencer Valdés | Huelén | 4 | 12.12 | 21 |
| María Elisa Palma Edwards | Santa Úrsula | 2 | 12.82 | 24 |
| Serie 3 |
| Teresita María Valdés Letelier | Santa Úrsula | 1 | 12.54 | 22 |
| Josefina Villena Soto | Lycée Antoine de Saint-Exupéry | 4 | 12.98 | 28 |
| Candelaria Mena Hurtado | Saint George's College | 6 | 13.00 | 29 |
| Andrea Calmels Alvarez | Huelén | 3 | 13.09 | 30 |
| Josefa Hermosilla Cid | María Luisa Bombal | 5 | 13.49 | 31 |
| Serie 4 |
| Laura Wood Lewin | SSCC Manquehue | 2 | 11.29 | 1 q |
| Olivia Arteaga Figueroa | Saint George's College | 5 | 11.43 (11.4300) | 5 q |
| Elisa Pérez Figueroa | La Maisonnette | 6 | 11.58 (11.5800) | 10 |
| Clara Irarrazaval Puente | San Benito | 1 | 11.88 | 16 |
| Pascuala Besa Fernandez | Lycée Antoine de Saint-Exupéry | 3 | 12.93 | 27 |
| Isabella Margarita Fornero Bustos | María Luisa Bombal | 4 | 13.67 | 33 |
| Serie 5 |
| Isidora Leon Ellmen | SSCC Manquehue | 1 | 11.55 (11.5500) | 7 |
| Manuela Dussart Infante | Lycée Antoine de Saint-Exupéry | 4 | 11.63 | 11 |
| Lourdes Eyzaguirre Delfau | San Benito | 6 | 11.87 | 15 |
| Isabel Gonzalez Ruiz De Gamboa | La Maisonnette | 3 | 11.92 | 18 |
| Julieta Lavadens Sanhueza | María Luisa Bombal | 2 | 14.53 | 34 |
| Serie 6 |
| Josefa Cárdenas Cáceres | Huelén | 6 | 11.55 (11.5500) | 8 |
| María Jesús López Ruiz | La Maisonnette | 2 | 11.83 | 14 |
| Catalina Sabat Rodillo | San Benito | 1 | 11.90 | 17 |
| Olivia Vial Tampier | San Benito | 4 | 11.94 | 19 |
| Valentina Paz Figueroa Lizama | María Luisa Bombal | 5 | 13.60 | 32 |
| Serie 7 |
| Colomba Llodrá Frauenberg | Saint George's College | 5 | 11.29 | 2 q |
| Arantxa Leguía Burger | SSCC Manquehue | 3 | 12.81 | 23 |
| Emilia Valenzuela Balmaceda | Huelén | 2 | 12.92 | 26 |
