| Serie 1 |
| Martin Alzérreca Duarte | San Ignacio El Bosque | 4 | 11.73 | 1 q |
| Vicente Medina Torres | Mayor - Peñalolen | 3 | 12.29 | 8 q |
| Ismael Suarez Quezada | Liceo Bicentenario Polivalente San Nicolás | 5 | 12.43 | 10 |
| Benjamin Muñoz Garachena | San José de Chicureo | 7 | 12.89 | 18 |
| Nicolás Jaque Pérez | Mayor - Peñalolen | 2 | 13.32 | 23 |
| Jeremy Orlando Escobar Gutierrez | Bernardo Felmer Niklitschek - Lanco | 1 | DNS | |
| Pedro Pablo Truffy Novales | Liceo Alemán del Verbo Divino - Los Ángeles | 6 | DNS | |
| Jorge Ismael Silva Altamirano | Bernardo Felmer Niklitschek - Lanco | 8 | DNS | |
| Serie 2 |
| Lucca Paolo Davagnino Loguercio | San Ignacio El Bosque | 5 | 12.21 | 6 q |
| Mateo Angel Ochoa | Saint Maurice’s | 4 | 12.22 | 7 q |
| Matias Alonso Sanchez Pereira | SSCC Concepción | 6 | 12.70 | 14 |
| Iván Alberto Retamal Venegas | Adventista de Chile | 7 | 12.83 | 16 |
| José Miguel Burgos Villanueva | Adventista de Chile | 8 | 13.87 | 27 |
| Fernando Bruna Hermosilla | Liceo Alemán del Verbo Divino - Los Ángeles | 1 | DNS | |
| Leandro Eliseo San Martín Mendoza | Hispano Americano Río Viejo | 2 | DNS | |
| Martin Alfonso Santana Gelvez | Liceo Bicentenario Polivalente San Nicolás | 3 | DNS | |
| Serie 3 |
| Hugo Vicente Vargas Pincheira | Concepción de Chillán | 4 | 11.87 | 2 q |
| Ignacio Alejandro Fuentes Fernandez | Adventista de Chile | 5 | 12.16 | 5 q |
| Felipe Gonzalo Cabrera Jaña | Saint James School | 2 | 12.93 | 21 |
| Sergio Enrique Arevalo Vasquez | Salesianos Talca | 7 | 13.33 | 24 |
| Rosamel Morales Carrasco | Liceo Juvenal Hernández Jaque | 1 | DNS | |
| Vicente Ignacio Ortiz Castillo | Salesianos Talca | 3 | DNS | |
| Martin Gallardo Matamala | Instituto Humanidades de Concepción | 6 | DNS | |
| Lucas Jeremias Sepulveda Venegas | Concepción de Chillán | 8 | DNS | |
| Serie 4 |
| Ignacio Manieu Mantelli | San Ignacio El Bosque | 4 | 12.05 | 3 q |
| Andres Santiago Parra Muñoz | SSCC Concepción | 3 | 12.43 | 11 |
| Rodrigo Agustin Vistoso Ramos | Liceo Bicentenario Oriente Talca | 5 | 12.54 | 12 |
| Carlos Ignacio Flores Arriagada | SSCC Concepción | 8 | 12.92 | 20 |
| Giovanny Liam Vargas Iturriaga | Escuela Villa Prat | 6 | 13.21 | 22 |
| Paulo Cortez Ciuffardi | Mayor - Peñalolen | 7 | 13.60 | 25 |
| Vicente Alonso Reyes Serrano | Saint Maurice’s | 2 | 14.64 | 28 |
| Serie 5 |
| Cristian Baeza Pedreros | Liceo Domingo Ortíz de Rozas - Coelemu | 4 | 12.07 | 4 q |
| Pablo Recabarren Cares | Padre Hurtado | 6 | 12.68 | 13 |
| Benjamin Andrés Palma Gomez | Bicentenario Enrique Salinas Buscovich | 5 | 12.79 | 15 |
| Jose Tomas Peralta Alliende | San José de Chicureo | 3 | 12.83 | 17 |
| Felipe Rios Valenzuela | Padre Hurtado | 2 | 12.89 | 19 |
| Baltazar Campino Garcia | Padre Hurtado | 8 | 13.74 | 26 |
| Joaquin Navarrete Grez | Concepción de Chillán | 7 | DNS | |
| Serie 6 |
| Felipe Nicolas Hermosilla Medina | Liceo Claudio Arrau León - Coihueco | 2 | 12.36 | 9 |
| Joaquin Andres Uarac Ramos | San José de Chicureo | 4 | 14.96 | 29 |
| Benjamin Marquez Cruces | San Mateo - Osorno | 3 | DNS | |
| Felipe Leal Opazo | Seminario Padre Hurtado de Chillán | 5 | DNS | |
| Ignacio Manieu Mantelli | San Ignacio El Bosque | 6 | DNS | |
