| Serie 1 |
| Benjamin Pimentel Jarpa | Craighouse School | 3 | 11.90 | 4 q |
| Santiago De La Cuadra A | The Grange School | 5 | 12.03 | 7 q |
| Carlos Titze Chimentti | Trebulco School | 4 | 12.04 | 8 q |
| Benjamín Mateo Reitze Simian | The Mackay School | 6 | 12.09 | 10 |
| Agustín Jose De La Jara Vergara | Dunalastair - Peñalolén | 7 | 12.66 | 19 |
| León Carvajal Rutllant | Santiago College | 1 | 12.78 | 22 |
| Andrés Astorga Contreras | Saint Gabriel's School | 8 | 13.26 | 29 |
| Maximiano Huper Cifuentes | Dunalastair - Peñalolén | 2 | | |
| Serie 2 |
| Domenico Gianni Avelli Maira | Bradford School | 3 | 12.22 | 13 |
| Santiago Cabargas Rengifo | Craighouse School | 5 | 12.31 | 15 |
| Nicolás Alonso Vinagre Hernández | Trebulco School | 6 | 12.34 | 16 |
| Joaquin Mac Laughlin Mazzarol | Dunalastair - Las Condes | 4 | 12.77 | 21 |
| José Tomás Bravo Rosa | Saint Gabriel's School | 7 | 12.89 | 25 |
| Agustín José Grez Luraschi | Bradford School | 2 | 13.06 | 28 |
| Nicolás Vizcaya Rojas | Dunalastair - Chicureo | 1 | | |
| Emilio Ignacio Díaz Cavalerie | The Wessex School - Concepción | 8 | | |
| Serie 3 |
| Pedro Pichara Haddad | Craighouse School | 5 | 11.53 | 1 q |
| Cristian Montes A | The Grange School | 4 | 11.80 | 3 q |
| Rodrigo Leitao Gálmez | Santiago College | 6 | 12.13 | 11 |
| Tomás Santiago Queirolo Furtado | Dunalastair - Chicureo | 3 | 12.66 | 20 |
| Martin Correa Galleguillos | Dunalastair - Chicureo | 8 | 12.84 | 24 |
| Marco Antonio Caamaño Pino | Dunalastair - Las Condes | 1 | 12.96 | 27 |
| Matias Quiroga Martinez | Saint John's School - Concepción | 7 | 13.42 | 30 |
| Vicente Andres Bustos Olivarí | Dunalastair - Peñalolén | 2 | | |
| Serie 4 |
| Cristobal San Martin | Saint John's School - Concepción | 4 | 11.77 | 2 q |
| Tomas Perez Martinez | The Mackay School | 1 | 12.06 | 9 |
| Martín José Barraza Simian | The Mackay School | 2 | 12.17 | 12 |
| Diego Wohl Silva | Saint John's School - Concepción | 3 | 12.23 | 14 |
| Jorge Alfredo Jiménez Enríquez | The Wessex School - Concepción | 7 | 12.64 | 16 |
| Felipe Andrade A | The Grange School | 6 | 12.65 | 18 |
| Martín Alejandro Chacón Izquierdo | Bradford School | 8 | 12.81 | 23 |
| Agustín Sariego Tápia | Saint Gabriel's School | 5 | 13.93 | 31 |
| Serie 5 |
| Franco De Aranzamendi Giannella | Santiago College | 5 | 11.95 | 5 q |
| Santiago Loayza Diaz | Trebulco School | 4 | 12.01 | 6 q |
| Martín Andres Seguel Flores | The Wessex School - Concepción | 7 | 12.91 | 26 |
| Franco Octavio Figueroa Banchieri | Dunalastair - Las Condes | 2 | 13.93 | 32 |
| Nicolás Alonso Vinagre Hernández | Trebulco School | 3 | | |
| Agustin Uribe Espinosa | Trebulco School | 6 | | |
| Sebastian Lob De La Fuente | The Mayflower School | 8 | | |
