| Serie 1 |
| Josefa Carrio Kreft | Saint George's College | 3 | 11.28 | 6 q |
| Agustina Calderon Segovia | SSCC Manquehue | 5 | 11.39 | 8 |
| Trinidad Ponce Foster | Huelén | 1 | 11.49 | 9 |
| Blanca Guerrero Muñoz | Santa Úrsula | 6 | 12.49 | 26 |
| Josefa Acuña Araya | María Luisa Bombal | 2 | DNS | |
| Olivia Vial Tampier | San Benito | 4 | DNS | |
| Serie 2 |
| Maria Elena Traverso Zuñiga | Huelén | 3 | 11.66 | 14 |
| Olivia Cisternas García-Huidobro | Santa Úrsula | 5 | 11.69 | 15 |
| Josefa Bouchon Trivelli | Saint George's College | 4 | 12.06 | 22 |
| Clara Elgueta Damm | La Maisonnette | 1 | 12.49 | 27 |
| Elisa Figueroa Lizama | María Luisa Bombal | 2 | 13.64 | 31 |
| Maria Isabel Cruzat Vial | Los Andes | 6 | 15.25 | 33 |
| Serie 3 |
| Martina María Undurraga Galvez | San Benito | 3 | 11.18 | 2 q |
| Maite Del Rosario Cintolesi Lira | La Maisonnette | 4 | 11.25 | 5 q |
| Catalina María Buchholtz Sotta | Santa Úrsula | 2 | 11.96 | 20 |
| Trinidad Cruzat Soza | Los Andes | 6 | 11.99 | 21 |
| Ema Miño Poulain | SSCC Manquehue | 5 | 12.64 | 28 |
| Amanda Isidora Espinosa Soto | María Luisa Bombal | 1 | 13.28 | 30 |
| Serie 4 |
| Isidora Montaner Lagos | Saint George's College | 5 | 11.18 | 3 q |
| Inés María Santini Carvajal | Los Andes | 3 | 11.82 | 17 |
| Maria Gracia Alarcon Berguecio | SSCC Manquehue | 1 | 11.91 | 18 |
| Javiera Ignacia Rojas Jofré | San Benito | 6 | 11.91 | 19 |
| Margarita Portales Fuenzalida | Huelén | 2 | 12.21 | 24 |
| Dominga Plaza Martinez | María Luisa Bombal | 4 | 13.87 | 32 |
| Serie 5 |
| Laura Campaña Niemeyer | SSCC Manquehue | 3 | 11.33 | 7 |
| Matilde Grohnert Rendoll | San Benito | 6 | 11.55 | 11 |
| Colomba Pizarro Pacheco | Saint George's College | 5 | 11.59 | 12 |
| Josefa Cárdenas Cáceres | Huelén | 4 | 11.72 | 16 |
| Sofia Vial Lecaros | Los Andes | 1 | 12.15 | 23 |
| Amalia Mendez Vergara | Santa Úrsula | 2 | 12.37 | 25 |
| Serie 6 |
| Alicia Tardel Swett | Saint George's College | 5 | 10.78 | 1 q |
| Carmen Zarhi Mc Intyre | Huelén | 6 | 11.22 | 4 q |
| Agustina Huidobro Perez | San Benito | 3 | 11.50 | 10 |
| Maria Irarrazaval Valdés | Los Andes | 4 | 11.59 | 13 |
| Blanca Ovalle Cherniavsky | Santa Úrsula | 1 | 12.88 | 29 |
| Laura Sandoval Del Solar | SSCC Manquehue | 2 | DNS | |
