| Serie 1 |
| Juan Widmer Ureta | La Cruz de MachalĂ | 5 | 9.36 | 5 q |
| Tomas Palleros Navarro | The Greenland School | 4 | 9.46 | 6 q |
| Valentin Alfonso Salinas Galaz | Campanario - Buin | 2 | 9.55 | 8 |
| Daniel Morales Aravena | The Angel's School | 1 | 10.04 | 12 |
| Juan Punti Claro | Instituto Inglés de Rancagua | 3 | 10.05 | 13 |
| Matias Ignacio Orellana Montero | Verbo Divino - Chicureo | 6 | | |
| Serie 2 |
| Clemente Von Unger Pablo | La Cruz de MachalĂ | 4 | 9.47 | 7 |
| Diego Portaluppi Scheel | Campanario - Buin | 1 | 10.21 | 15 |
| Jorge Nicolás Cruz Napoli | Coya | 3 | 10.23 | 16 |
| Imaro Tapia Ortega | The Greenland School | 6 | 11.07 | 18 |
| Santiago Emilio De La Barra Caviedes | Verbo Divino - Chicureo | 2 | 11.74 | 20 |
| AgustĂn Rojas Argandoña | Carampangue | 5 | | |
| Serie 3 |
| Anibal Zañartu Zegers | La Cruz de Machalà | 1 | 9.24 | 4 q |
| Fernando Alonso Gacitua Fuentes | Coya | 3 | 9.57 | 9 |
| Santiago Orias Morales | Instituto O'Higgins de Rancagua | 5 | 10.00 | 11 |
| Maximiliano Santana Prandi | The Greenland School | 2 | | |
| Lucas Valdivieso Peña | Carampangue | 4 | | |
| Benjamin Ignacio Ulloa Ortiz | Verbo Divino - Chicureo | 6 | | |
| Serie 4 |
| Pascual Poblete Dionizis | Coya | 5 | 9.17 | 1 q |
| Pablo Ignacio Vera Delso | Instituto O'Higgins de Rancagua | 3 | 9.22 | 3 q |
| MartĂn Salinas Larredonda | Instituto InglĂ©s de Rancagua | 4 | 10.52 | 17 |
| Lorenzo Lara Jara | Trinity College | 2 | 11.31 | 19 |
| Maximiliano Román Cantillana | Los Cipreses | 1 | | |
| Serie 5 |
| Vicente Antonio Cordero Bratti | Campanario - Buin | 2 | 9.20 | 2 q |
| Lucas Bonomo Carracedo | Instituto Inglés de Rancagua | 1 | 9.97 | 10 |
| Pablo Cifuentes Cifuentes | Trinity College | 4 | 10.15 | 14 |
| ValentĂn Santis Tobar | Los Cipreses | 3 | | |
| Lucas Felipe Valenzuela Coleman | Instituto O'Higgins de Rancagua | 5 | | |
