| Atleta | Colegio | Pista | Resultado | Lugar |
|---|---|---|---|---|
| Serie 1 | ||||
| Clara Maria Urrejola Irarrazabal | Los Andes | 3 | 11.92 | 1 q |
| Olivia Moreno Gómez | San Benito | 5 | 11.94 | 2 |
| Dominga Johnson Preece | San Anselmo | 6 | 12.17 | 3 |
| Ignacia Stefanelli Fuenzalida | Nazaret | 2 | DNF | |
| Belen Añon De Leon | San Francisco Javier de Huechuraba | 4 | DNS | |
| Serie 2 | ||||
| Antonia Hayler Browne | San Benito | 4 | 10.46 | 1 q |
| Maria Ignacia HenrÃquez Veloso | The English Institute | 5 | 11.25 | 2 q |
| Claudia Lopez Ruiz | Internacional SEK | 2 | DNS | |
| Florencia Belén Palma Liguori | The English Institute | 3 | DNS | |
| Victoria Lorca Wolff | Alemán de Santiago | 6 | DNS | |
| Serie 3 | ||||
| Amparo Ariztia Silva | Villa MarÃa Academy | 2 | 11.29 | 1 q |
| Carmen Schmidt Jimenez | Villa MarÃa Academy | 6 | 11.37 | 2 q |
| Elena Guzman Cox | Huelén | 3 | 11.57 | 3 q |
| Maria Jose Perez Larrain | Los Andes | 4 | 11.96 | 4 |
| Maria Gracia Barbosa Barcelo | Everest | 5 | DNS | |
| Serie 4 | ||||
| Pilar Dominguez Gines | Nazaret | 2 | 11.20 | 1 q |
| Barbara Cummins Dominguez | Everest | 4 | 11.50 | 2 q |
| Emilia Sanfuentes Wylie | Villa MarÃa Academy | 6 | 11.85 | 3 q |
| Belen Sajuria Sordo | Nazaret | 5 | 12.68 | 4 |
| Katte Collie Webb | Internacional SEK | 3 | DNS | |
| Serie 5 | ||||
| Bernardita Infante Cifuentes | San Anselmo | 5 | 10.68 | 1 q |
| Sofia Manguyague Cruz | Everest | 6 | 10.97 | 2 q |
| Javiera De Jesús Rojas Murúa | The English Institute | 4 | 11.47 | 3 q |
| Rosario Mujica Errazuriz | Los Andes | 2 | 13.58 | 5 |
| Amalia Diaz Schmidt | San Anselmo | 3 | ||
