| Serie 1 |
| Gabriel Andrés Pérez Grez | Carampangue | 1 | 10.90 | 4 q |
| Federico Morandé Krefft | San Isidro | 2 | 11.22 | 9 |
| Joaquín Garcia Dagnino | Campanario - Buin | 3 | 11.38 | 12 |
| Benjamin Andres Parra Santana | San Francisco de Paine | 6 | 11.51 | 14 |
| Agustin Neumann Castro | Trebulco School | 4 | 11.90 | 21 |
| Martín Moreno Peréz | Maitenes | 5 | 12.30 | 23 |
| Serie 2 |
| Renato Alonso Paz Gioivanetti | Campanario - Buin | 5 | 10.80 | 2 q |
| Lucas Gabriel Ascui Vergara | Saint James School | 1 | 10.84 | 3 q |
| Martin Henrriquez Arriagada | Instituto Alonso de Ercilla | 3 | 11.63 | 15 |
| Domingo Rodríguez Vargas | Maitenes | 2 | 11.75 | 18 |
| Tomas Ignacio Jimenez Sobarzo | San Francisco de Paine | 6 | 12.63 | 24 |
| Matthew Cyr Severino | Trebulco School | 4 | DNS | |
| Serie 3 |
| Martin Elias Cibie Monge | San Francisco de Paine | 5 | 11.31 | 10 |
| Fernando Javier Pavez Letelier | Saint James School | 2 | 11.48 | 13 |
| Christian Patricio Reinares Araneda | Instituto Alonso de Ercilla | 4 | 11.67 | 16 |
| Benjamín Greve Valdés | Carampangue | 6 | 12.20 | 22 |
| Martín Valenzuela Lecaros | Maitenes | 3 | 13.15 | 26 |
| Martín Arteaga Montes | San Isidro | 1 | DNS | |
| Serie 4 |
| Pedro Sarah Bulcke | San Isidro | 5 | 10.90 | 5 q |
| Emilio Sanhuesa Ozimica | Campanario - Buin | 6 | 11.04 | 7 q |
| Jose Manuel Estay Sandoval | San Francisco de Paine | 2 | DNS | |
| Vicente Burgos Domínguez | Trebulco School | 3 | DNS | |
| Agustin Ignacio Covarribias Inostroza | Saint James School | 4 | DNS | |
| Serie 5 |
| Maximiliano Andrés Seguel Anders | Carampangue | 3 | 10.61 | 1 q |
| Benjamín Ignacio Nazer Ramos | Instituto Alonso de Ercilla | 4 | 11.36 | 11 |
| Máximo Julio Quililongo González | Campanario - Buin | 2 | 11.73 | 17 |
| Alejandro Rahmer Acevedo | Maitenes | 5 | 11.82 | 19 |
| Alvaro Enrique Meneses Gomnzalez | Saint James School | 6 | DNS | |
| Serie 6 |
| Máximo Rodríguez Mena | Carampangue | 4 | 10.98 | 6 q |
| Gabriel Flores Cardemil | Trebulco School | 5 | 11.17 | 8 q |
| Clemente Correa Farias | San Isidro | 2 | 11.82 | 20 |
| Emanuel Josue Figueroa Erazo | Instituto Alonso de Ercilla | 1 | 12.67 | 25 |
| Lucas Ignacio Donaire Foster | La Misión de Calera de Tango | 3 | DNS | |
