| Serie 1 |
| Agustin Alonso Aguilera Arriagada | Manquecura - Ciudad de los Valles | 3 | 9.77 | 1 q |
| Alejandro Magne Araya | Instituto La Salle | 1 | 9.88 | 2 |
| Alexis Jose Ferrer Parra | Arnaldo Falabella | 4 | 10.47 | 3 |
| Alfonso Ignacio Hernandez Hinojosa | Greenfield School | 2 | DNS | |
| Camilo Lerma L | Liceo Amador Neghme | 5 | DNS | |
| Santiago Cañas Villegas | SSCC Alameda | 6 | DNS | |
| Serie 2 |
| Salvador Velásquez Acuña | Carampangue | 6 | 9.83 | 1 |
| Pablo Luengo Velasco | Manquecura - Ciudad de los Valles | 4 | 9.93 | 2 |
| Fadell Tous Poman | Arnaldo Falabella | 3 | 10.24 | 3 |
| Maximiliano Jesus Avello Parraguez | Presidente Alessandri | 1 | DNS | |
| José Fernando Icanaque Ramos | Liceo Amador Neghme | 2 | DNS | |
| Cristian Leon Vivanco Flores | SSCC Alameda | 5 | DNS | |
| Serie 3 |
| Bruno Lineros Cabezas | Domingo Matte Mesías | 5 | 8.48 | 1 q |
| Alejandro Rojas Cáceres | Atletismo San Bernardo | 3 | 9.57 | 2 q |
| Benjamín Heredia Moreno | Carampangue | 6 | 10.66 | 3 |
| Joaquin Alejandro Moncada | Academia de Humanidades | 2 | 10.73 | 4 |
| Felipe Sepúlveda S | Liceo Amador Neghme | 1 | DNS | |
| Dylan Astorga Gonzalez | De Santa María - El Monte | 4 | DNS | |
| Serie 4 |
| Fernando Antonio Solar Barrenechea | Carampangue | 1 | 9.39 | 1 q |
| Maximiliano Ibaceta Gomez | Manquecura - Ciudad de los Valles | 5 | 9.54 | 2 q |
| Alexander Ramirez Angarita | Escuela Básica Saint Rodric College | 6 | 9.64 | 3 q |
| Alonso Ignacio Castillo Peña | Academia de Humanidades | 2 | DNS | |
| Emanuel David Cogollo Martinez | Arnaldo Falabella | 3 | DNS | |
| Agustín Julián Aquino Aguilar | Sebastián Elcano | 4 | DNS | |
