| Atleta | Colegio | Pista | Resultado | Lugar |
|---|---|---|---|---|
| Serie 1 | ||||
| Catalina Arancibia Letelier | San Benito | 5 | 12.93 | 3 q |
| Laura Rios Araya | Los Alerces | 4 | 14.06 | 9 |
| Maria Ignacia Rivadeneira Contardo | San Anselmo | 6 | 14.40 | 10 |
| Elisa Garcia Armas | San José de Chicureo | 3 | 14.41 | 11 |
| Elena Ovalle Valdes | Los Andes | 2 | DNS | |
| Serie 2 | ||||
| Isidora Del Rosario Corada Vives | Andrée English School | 6 | 12.54 | 1 q |
| Trinidad Smith Subercaseaux | Los Alerces | 2 | 13.01 | 4 q |
| Olivia Cruz Vergara | Los Andes | 3 | 13.06 | 5 q |
| Mila Duluc A | The Grange School | 4 | 13.15 | 6 q |
| Ena Silva Silva | Huelén | 5 | 13.17 | 7 |
| Serie 3 | ||||
| Beatriz Doren Infante | San Benito | 4 | 12.71 | 2 q |
| Maria Magdalena Silva Silva | Huelén | 3 | 13.45 | 8 |
| Laura Van De Wyngard Saldias | San Anselmo | 2 | 14.71 | 12 |
| Catalina Carrillo A | The Grange School | 5 | DNS | |
