| Serie 1 |
| Juan Agustín Gachot Squella | La Corsa | 3 | 10.85 | q |
| Cristóbal Nawël Huaracán Campos | Universidad Católica | 4 | 11.16 | q |
| Vicente Yañez Maldonado | Nicolás Carvajal - Talagante | 6 | 11.40 | |
| Gabriel Díaz Vargas | Universidad Católica | 2 | 12.01 | |
| Martin Ignacio Galvez Melendez | Atlético Francés | 7 | 12.07 | |
| Tomás Antonio Garay Obrador | Atlético Puente Alto | 1 | 12.39 | |
| Sebastián Correa Bezanilla | Atlético Santiago | 5 | DNS | |
| Vicente Belgeri Rojas | Manquehue | 8 | DNS | |
| Serie 2 |
| Enzo Camilo Escalona Aravena | Atlético Olimpo Chiguayante | 3 | 11.21 | q |
| Domingo Ruiz Tala | Manquehue | 8 | 11.37 | |
| Emilio Retamal Guajardo | Nicolás Carvajal - Talagante | 6 | 11.55 | |
| Martin Alzérreca Duarte | San Ignacio | 2 | 11.95 | |
| Ricardo Escarate Jara | Atlético O'Higgins | 1 | 13.10 | |
| Nicolas Daudet Escobar | San Ignacio | 4 | DNS | |
| Juan Pablo Morales Corradini | Atlético Fénix Melipilla | 5 | DNS | |
| Daniel Alejandro Duran Baeza | Atlético Rancagua | 7 | DNS | |
| Serie 3 |
| Abbias Wolson Basquin M | Atlético USACH | 3 | 11.06 | q |
| Agustin Troncoso Aburto | Atlético Olimpo Chiguayante | 4 | 11.39 | |
| Martín Andres Villegas Montoya | Universidad Católica | 5 | 11.43 | |
| Tomás Daniel Verdugo Ardiles | Atlético Francés | 2 | 12.05 | |
| Martin Alejandro Riveros Martinez | Atlético Puente Alto | 1 | 12.82 | |
| Alonso Tomás León Rojas | Oassi | 6 | DNS | |
| Felipe Andres Bravo Segura | Deportivo 7 Ríos | 7 | DNS | |
| Daniel Bernales Lagoa | Universidad Católica | 8 | DNS | |
| Serie 4 |
| Martín Ignacio Alcaíno Moya | Manquehue | 5 | 11.28 | |
| David Alejandro Donoso Ubilla | Atlético Estudiantes | 4 | 11.34 | |
| Sebastián Infante Melloni | San Ignacio | 8 | 11.86 | |
| Benjamín Cid Arriagada | La Corsa | 2 | 11.89 | |
| César Andrés Pineda Vielma | Atlético Francés | 1 | 13.02 | |
| Juan Andres Concha Pinto | San Ignacio | 3 | DNS | |
| Patrick Devilat Necochea | Universidad Católica | 6 | DNS | |
| Esteban Hernandez Lizana | Ejercito de Chile | 7 | DNS | |
| Serie 5 |
| Jose Agustin Irarrazaval Mainguyague | Atlético Santiago | 3 | 11.16 | q |
| Ilan San Martin Kleinkopf | Universidad Católica | 4 | 11.45 | |
| Rodrigo Andrés Gómez Araya | Atlético Manuel Larraín | 6 | 11.74 | |
| Gustavo Ariel Medina Alarcón | Atlético Estación Central | 1 | 13.31 | |
| Pablo Ruiz Tal | Manquehue | 2 | DNS | |
| Arturo Goldsack Salinas | Atlético Santiago | 5 | DNS | |
| Dris Alveiro Alquizar Diaz | Oassi | 7 | DNS | |
| Benjamin Andres Torres Galvez | Atlético Harambeé | 8 | DNS | |
| Serie 6 |
| Martin Díaz Del Solar | Atlético Fénix Melipilla | 3 | 11.12 | q |
| Cristobal Andre Figueroa Matus | Atlético Quilamapu | 4 | 11.29 | |
| Cristian Andrés Ibarra Santis | Atlético Formativo Casal | 5 | 11.45 | |
| Gaspar Pereira Herrera | Atlético Santiago | 6 | 11.67 | |
| Joaquín Carrasco Olivares | San Ignacio | 2 | 12.13 | |
| Santiago Enrique Brain Gutiérrez | Universidad Católica | 7 | 12.19 | |
| Víctor Ignacio Campos Olguín | Atlético Estación Central | 1 | 13.12 | |
| Matias Mitchell Acevedo | Atlético Fénix Melipilla | 8 | 13.49 | |
| Serie 7 |
| Ronald Nannig Nuñez | Atlético Puente Alto | 3 | 11.30 | |
| Cristobal Godoy Villanueva | Atlético Manuel Larraín | 5 | 11.37 | |
| Marcos Antonio Roo Fuenmayor | Atlético Santiago | 2 | 11.92 | |
| Jorge Caceres Hernandez | Atlético San Vicente | 7 | 12.27 | |
| Miguel Nicolás Núñez Sanhueza | Oassi | 1 | DNS | |
| Felipe Ampuero Bathich | Oassi | 4 | DNS | |
| Guillermo Osvaldo Becerra Rodriguez | Atlético Formativo Casal | 6 | DNS | |
| Vicente Cox Ojeda | San Ignacio | 8 | DNS | |
| Serie 8 |
| Clemente Alessandro Enriotti Carrasco | Atlético Olimpo Chiguayante | 4 | 11.20 | q |
| Ariel Rivera Hernandez | Atlético Puente Alto | 1 | 11.41 | |
| Domingo Lazo Weiss | Nicolás Carvajal - Talagante | 6 | 11.82 | |
| Rolando Andrés Rojas Becerra | Atlético Formativo Casal | 2 | 11.83 | |
| Roberto Tomás Castro González | Atlético Estudiantes | 8 | 12.02 | |
| Mateo Gutiérrez Bustamante | San Ignacio | 3 | DNS | |
| Joaquin Fernandez Rodriguez | Atlético Ñuble | 5 | DNS | |
| Adolfo Roberto Beseler Gallegos | Oassi | 7 | DNS | |
| Serie 9 |
| Marc Anderson Donat Donat | Atlético Manuel Larraín | 3 | 11.15 | q |
| Juan Pablo Cofre Celis | Atlético Santiago | 1 | 11.44 | |
| Pedro Pablo Leiva Gaete | Atlético Francés | 5 | 11.61 | |
| Martín Eduardo Garay Obrador | Atlético Puente Alto | 7 | 12.35 | |
| Bastián Castillo Silva | Atlético Francés | 8 | 12.35 | |
| Ephese Brutus Brutus | Atlético San Vicente | 6 | 12.59 | |
| Diego Muñoz Villarroel | Atlético Manuel Larraín | 2 | DNS | |
| Diego Alessandro Coppola Orellana | Círculo Atlético San Antonio | 4 | DNS | |
