| Atleta | Colegio | Pista | Resultado | Lugar |
|---|---|---|---|---|
| Serie 1 | ||||
| Isabel Claro Irarrázaval | Cumbres | 3 | 10.55 | 1 q |
| Olivia Susacasa Frederich | Saint George's College | 8 | 10.92 | 2 q |
| Lourdes Aguero Ureta | Los Andes | 4 | 11.40 | 5 q |
| Ana María Merino Burmester | Los Alerces | 1 | 11.58 | 9 |
| Antonia Vargas Maldonado | SSCC Manquehue | 7 | 12.19 | 14 |
| Antonia Godoy Canessa | Nazaret | 2 | 12.73 | 16 |
| Martina Krebs Saez | Santa Úrsula | 6 | 15.02 | 18 |
| Serie 2 | ||||
| Catalina Cruz Mozo | Nazaret | 3 | 11.26 | 4 q |
| Dominga Robles Aguirre | Saint George's College | 6 | 11.46 | 8 q |
| Josefina Mendez Bustos | SSCC Manquehue | 8 | 11.67 | 11 |
| Martina Maggi Maucher | Cumbres | 2 | 12.72 | 15 |
| Sara Halpern Rivera | Santa Úrsula | 7 | 12.80 | 17 |
| Serie 3 | ||||
| Laura Wood Lewin | SSCC Manquehue | 4 | 11.14 | 3 q |
| Amalia Tagle Bier | Santa Úrsula | 2 | 11.40 | 6 q |
| Juanita León Langlois | Los Alerces | 5 | 11.43 | 7 q |
| Maria Ignacia Carcamo Larrain | Everest | 3 | 11.62 | 10 |
| Isabel Martinez Hoffmann | Nazaret | 7 | 11.97 | 12 |
| Maria Irarrazaval Valdés | Los Andes | 6 | 12.09 | 13 |
