| Serie 1 |
| Juan Ibañez Larrain | Cordillera | 5 | 11.71 | 5 q |
| Vicente Alfonso Coronado Acuña | San Ignacio El Bosque | 3 | 11.99 | 13 |
| Manuel Guzman Garcia De La Huerta | Verbo Divino | 7 | 12.26 | 24 |
| Guillermo Echeñique Sanchez | Cordillera | 6 | 12.26 | 25 |
| Manuel Kraemer Rioseco | SSCC Manquehue | 1 | 12.37 | 30 |
| Gustavo Valderrama Leitao | Highlands | 8 | 13.06 | 46 |
| Stefan Gerhard Liberona | Alemán de Santiago | 2 | 13.11 | 48 |
| Tomas Leon Valenzuela | SSCC Manquehue | 4 | DNS | |
| Serie 2 |
| Tomas Pinto Muñoz | Cumbres | 4 | 11.47 | 2 q |
| Maximo Correa Montero | Everest | 5 | 11.74 | 7 q |
| Martin Astaburuaga Coddou | Verbo Divino | 1 | 11.80 | 8 q |
| Vicente Yañez Maldonado | Padre Hurtado y Juanita de los Andes | 3 | 12.09 | 19 |
| Facundo Vidal Garcia | Pumahue | 8 | 12.45 | 32 |
| Sebastián Vidal Cáraves | San Anselmo | 7 | 12.57 | 37 |
| Christian Patricio Reinares Araneda | Instituto Alonso de Ercilla | 2 | DNS | |
| Julio Bertrandt Velasco | SSCC Manquehue | 6 | DNS | |
| Serie 3 |
| Nicolas Iriarte Tagle | Padre Hurtado y Juanita de los Andes | 5 | 11.71 | 6 q |
| Cristóbal Acuña Sánchez | Mayor - Peñalolen | 3 | 12.02 | 14 |
| Benjamin Nicolas Ruiz Vasquez | San Ignacio El Bosque | 4 | 12.02 | 15 |
| Tomás Cornejo Cabello | Highlands | 2 | 12.40 | 31 |
| Martín Araneda Araneda | San Anselmo | 7 | 12.57 | 38 |
| Italo André Gutiérrez Alarcón | Instituto Alonso de Ercilla | 8 | 12.60 | 39 |
| Santiago De La Cuadra A | The Grange School | 6 | 12.61 | 40 |
| Benjamín Correa Tocornal | Cumbres | 1 | 12.72 | 43 |
| Serie 4 V.V. +0.0 |
| Jose Miguel Orellana Lopez | Instituto Comercial La Cisterna | 4 | 11.37 | 1 q |
| Fernando Vallejos Lopez | Colegio Los Alpes de Maipú | 5 | 11.89 | 10 |
| Xing Jie Lucas Lu Flores | Mayor - Peñalolen | 6 | 12.09 | 20 |
| Mariano Ignacio Cifuentes Orellana | Instituto Alonso de Ercilla | 7 | 12.28 | 26 |
| Jose Garrido A | The Grange School | 1 | 13.01 | 45 |
| Raimundo Ernesto De La Cruz Cárdenas | Highlands | 8 | 13.06 | 47 |
| Felipe Machuca Barria | Alemán de Santiago | 2 | DNS | |
| Diego Fuentes Muñoz | San José de Chicureo | 3 | DNS | |
| Serie 5 V.V. -0.6 |
| Juan Vicente Rodriguez Flores | Padre Hurtado y Juanita de los Andes | 4 | 11.48 | 3 q |
| Tomás Vega Mack | The Newland School | 5 | 11.96 | 11 |
| Alonso Andrés Ossandón Fernández | The Newland School | 3 | 12.14 | 21 |
| Santiago Leiva Mendez | San Ignacio El Bosque | 6 | 12.52 | 34 |
| Benjamín Meiss Contreras | Alemán de Santiago | 2 | 12.61 | 41 |
| Álvaro Montane Schorr | San Benito | 7 | 12.69 | 42 |
| Mateo Ignacio Esquivel Hernández | SSCC Alameda | 1 | DNS | |
| Sergio Alonso Rojas Oñate | Campanario - Buin | 8 | DNS | |
| Serie 6 V.V. -0.7 |
| Martin Montesinos Lopez De Santa María | Saint George's College | 4 | 11.87 | 9 |
| Leon Florenzano Errazuriz | Verbo Divino | 8 | 12.15 | 22 |
| Diego Giovanni Marchan Aravena | Saint Maurice’s | 5 | 12.16 | 23 |
| Santiago Barberis Aliaga | Saint George's College | 3 | 12.36 | 29 |
| Amaro Castillo Hidalgo | Mayor - Peñalolen | 2 | 14.06 | 49 |
| Matias Cisneros Del Fierro | San Francisco Javier de Huechuraba | 6 | DNS | |
| Gabriel Gonzalez Marambio | Saint Gabriel's School | 7 | DNS | |
| Serie 7 V.V. +0.2 |
| Juan José García Ovalle | Tabancura | 4 | 12.04 | 16 |
| Sebastian Rencoret Escala | Saint George's College | 5 | 12.05 | 17 |
| Agustin Ossa Chaigneau | Huinganal | 2 | 12.06 | 18 |
| Pelayo Buzeta Grez | San Anselmo | 7 | 12.28 | 27 |
| Pablo Duque Rodríguez | Everest | 8 | 12.45 | 33 |
| Clemente Fernandez Hurtado | Huinganal | 3 | 12.53 | 35 |
| Renato Alonso Paz Gioivanetti | Campanario - Buin | 6 | DNS | |
| Serie 8 V.V. +0.3 |
| Arturo Goldsack Salinas | Huinganal | 2 | 11.62 | 4 q |
| Hernán Muñoz Silva | Tabancura | 5 | 11.98 | 12 |
| Tomás Arenas Kutz | Tabancura | 8 | 12.30 | 28 |
| Benjamin Alvarez Cofre | Cordillera | 3 | 12.56 | 36 |
| Domingo Vinagre Garcia Huidobro | Cumbres | 7 | 12.79 | 44 |
| Santiago Loayza Diaz | Trebulco School | 4 | DNS | |
| Richard Von Appen Terre | Everest | 6 | DNS | |
