| Serie 1 |
| Santiago León Fernández Muñoz | Instituto Alonso de Ercilla | 3 | 8.51 | 1 q |
| Pedro Leon Fuentes Arenas | Instituto San Martín - Curicó | 4 | 8.63 | 2 q |
| Agustin León Gómez Ilabaca | Boston Academy Laguna del Sol | 1 | 9.12 | 7 q |
| Facundo Leon Alberto Gatica Ruiz | Instituto San Martín - Curicó | 5 | 9.16 | 8 q |
| Franco Alonso Vidal Cerda | Boston Academy Laguna del Sol | 2 | 9.51 | 13 |
| Serie 2 |
| Joaquin Rodriguez Escobar | Instituto Rafael Ariztía | 4 | DNS | |
| Serie 3 |
| Simón Mateo Garay Moreno | Boston Academy Laguna del Sol | 4 | 9.26 | 10 |
| Matheo Agustin Berendsend Vergara | Instituto San Martín - Curicó | 1 | 9.29 | 12 |
| Tomas Valle Perez | Instituto Rafael Ariztía | 2 | DNS | |
| Tomás Ignacio Durán Contreras | San Antonio del Baluarte de Rengo | 3 | DNS | |
| Vicente Ignacio Donoso Morales | Instituto Alonso de Ercilla | 5 | DNS | |
| Serie 4 |
| Gabriel Alejandro Cabezas Rojas | Boston Academy Laguna del Sol | 2 | 8.73 | 3 q |
| Jorge Mateo Alvarado Hernandez | Instituto Alonso de Ercilla | 4 | 8.83 | 5 q |
| Gaspar Mondaca Vargas | Instituto Rafael Ariztía | 1 | 10.08 | 16 |
| Joaquin Emilio Caamaño Arancibia | Instituto San Martín - Curicó | 3 | DNS | |
| Clemente Canessa Benítez | Champagnat - Villa Alemana | 5 | DNS | |
| Serie 5 |
| Gabriel Enrique Tapia Quintana | Boston College - Maipu | 3 | 9.26 | 11 |
| Lucas Villaroel Vergara | Instituto Rafael Ariztía | 1 | 9.84 | 15 |
| Vicente Royo Montalva | Boston Academy Laguna del Sol | 2 | DNS | |
| Miguel Ignacio Araya Alcaraz | Champagnat - Villa Alemana | 4 | DNS | |
| Simón Alejandro Lizana Hizmeri | Instituto Alonso de Ercilla | 5 | DNS | |
| Serie 6 |
| Daniel Hernan Cabrera Estrada | Instituto Alonso de Ercilla | 5 | 8.81 | 4 q |
| Raimundo Alejandro Chiuminatto Gonzalez | Instituto San Martín - Curicó | 2 | 8.94 | 6 q |
| Isaias Mateo Parra Fernàndez | Boston College - Maipu | 4 | 9.18 | 9 q |
| Baltazar Alejandro Cabrera Villarroel | San Antonio del Baluarte de Rengo | 1 | 9.56 | 14 |
| Víctor Fabián González Álvarez | Champagnat - Villa Alemana | 3 | DNS | q |
