| Serie 1 V.V. +0.3 |
| Catalina Rozas Arellano | Saint George's College | 8 | 12.28 | 1 q |
| Julieta RodrÃguez Grez | Santa Úrsula | 7 | 13.15 | 8 q |
| Laura Rengifo Molina | Villa MarÃa Academy | 1 | 13.17 | 9 |
| Trinidad Smith Subercaseaux | Los Alerces | 4 | 13.42 | 11 |
| Mila Duluc A | The Grange School | 2 | 13.47 | 13 |
| Magdalena Aguirre S | San Francisco Javier de Huechuraba | 6 | 13.91 | 18 |
| Thais Karina Cerón Capote | Saint Gabriel's School | 3 | 14.24 | 21 |
| Francisca Dakota Silva Reus | Escuela Mune Bajo | 5 | DNS | |
| Serie 2 V.V. +0.9 |
| Blanca Yarur Junemann | Los Alerces | 6 | 12.58 | 4 q |
| Anjali Sanrevelle Weisenburger Aldana | Santa Úrsula - Maipú | 2 | 13.49 | 14 |
| Ignacia Serrano Vial | Cumbres | 3 | 13.62 | 16 |
| Emily Bücher Von Unger | Alemán de Santiago | 7 | 14.66 | 23 |
| Isidora Barrenechea Federici | Saint Gabriel's School | 1 | DNS | 5 |
| Matilde Gutierrez Ramos | Mariano de Schoenstatt | 4 | DNS | |
| Florencia Martel Venegas | Curimón - San Felipe | 5 | DNS | |
| Catalina Barria Gallardo | Greenhouse School | 8 | DNS | |
| Serie 3 V.V. -0.1 |
| Sofia Segura Tupper | The Newland School | 7 | 12.34 | 2 q |
| Ena Silva Silva | Huelén | 4 | 13.07 | 6 q |
| Emilia Toloza Chellew | Cumbres | 5 | 13.40 | 10 |
| Ana Villegas Prieto | Everest | 1 | 13.42 | 12 |
| MarÃa Ignacia Correa Bathel | Nazaret | 3 | 14.12 | 20 |
| Sophia Ahumada Villalobos | The Angel's School | 2 | 14.33 | 22 |
| Francisca Garaje Flores | Santa Úrsula - Maipú | 8 | 15.24 | 24 |
| Isidora De Giorgis Sanguineti | Alemán de Santiago | 6 | DNS | |
| Serie 4 V.V. +0.1 |
| Francisca Carvajal Ponce | San Francisco Javier de Huechuraba | 4 | 12.55 | 3 q |
| MarÃa Gracia Carrasco Olivares | Villa MarÃa Academy | 8 | 13.02 | 5 q |
| Juanita Donoso Chadwick | Santa Úrsula | 5 | 13.11 | 7 q |
| Pilar Dominguez Gines | Nazaret | 7 | 13.53 | 15 |
| Maria Magdalena Silva Silva | Huelén | 2 | 13.72 | 17 |
| Constanza Rayen Mayorga Diaz | Santa Teresita del Niño Jesús - Coelemu | 6 | 14.11 | 19 |
| Paulette Barra Tapia | Internacional SEK | 3 | DNS | |
