| Serie 1 |
| Braulio Constantino Gaete Arancibia | Instituto La Salle | 8 | 10.03 (10.0300) | 15 |
| Joaquín Carrasco Olivares | San Ignacio El Bosque | 7 | 10.05 | 17 |
| Ramón Andrés Galaz Cubillos | The Newland School | 5 | 10.12 | 19 |
| Lucas Palacios Medeiros | Monte Tabor | 2 | 10.49 | 23 |
| Miguel Fuelquera Cabello | Escuela Atlética Ganbaru | 4 | 10.84 | 28 |
| Lucas Ramírez Durán | Santo Domingo | 3 | 12.56 | 39 |
| José Carlos Barella Riutort | San Isidro | 1 | DNS | |
| Cristobal Ignacio Viveros Carrillo | Internacional Alba | 6 | DNS | |
| Serie 2 |
| Martin Astaburuaga Coddou | Verbo Divino | 2 | 9.42 | 2 q |
| Julian Alberto Ávila Campos | Salesianos Linares | 1 | 9.56 | 4 q |
| Pelayo Buzeta Grez | San Anselmo | 6 | 10.00 (10.0000) | 12 |
| Martín González Arguinarena | San Isidro | 3 | 10.37 | 21 |
| Agustin Sepulveda Arellano | Santa Cruz - Chicureo | 4 | 10.90 | 29 |
| Manuel Lagos Ariztia | San Ignacio El Bosque | 5 | 11.04 | 33 |
| Matías Cerda Ramírez | Mayor - Peñalolen | 8 | 11.14 | 34 |
| Fernando Catrón Silva | Epullay Montessori | 7 | 11.39 | 35 |
| Serie 3 |
| Juan Ibañez Larrain | Cordillera | 3 | 9.40 | 1 q |
| Lucas Moreno Tagle | Verbo Divino | 2 | 9.75 | 7 q |
| Patrick Devilat Necochea | Santa Cruz - Chicureo | 7 | 9.96 | 10 |
| Sebastián Vidal Cáraves | San Anselmo | 5 | 10.08 | 18 |
| Emilio Belosapkin Cotapos | Epullay Montessori | 4 | 10.58 | 24 |
| Alejandro Valdebenito Franco | Mayor - Peñalolen | 8 | 10.79 | 27 |
| Matias Guarin Guarin | Sonlight | 6 | 12.29 | 38 |
| Serie 4 |
| Sebastián Pizarro Bengolea | Cordillera | 8 | 10.02 | 14 |
| Humberto Peña Douglas | The Mayflower School | 2 | 10.03 (10.0300) | 15 |
| Nicolas Tapia Orsini | San José de Chicureo | 3 | 10.43 | 22 |
| Gal Medel Winner | Instituto Hebreo | 4 | 11.71 | 37 |
| Valentino Ferraris Rewak | Internacional SEK | 5 | DNS | |
| Sebastián Gonzalez Jerrett | Saint Gabriel's School | 6 | DNS | |
| Wladimir Alvarez Seguel | De Santa María - El Monte | 7 | DNS | |
| Serie 5 |
| Diego Fuentes Muñoz | San José de Chicureo | 5 | 9.70 | 6 q |
| Martín Montaner Lagos | Saint George's College | 3 | 9.85 | 9 |
| Facundo Vidal Garcia | Pumahue | 2 | 9.99 | 11 |
| Andrés Salvatierra Freire | Lycée Antoine de Saint-Exupéry | 6 | 11.61 | 36 |
| Santiago Emilio Figueroa Fernandes | Scuola Italiana - Vittorio Montiglio | 4 | DNF | |
| Pedro Karmelic Vega | Internacional SEK | 7 | DNS | |
| Jorge Lillo Peña | Saint Gabriel's School | 8 | DNS | |
| Serie 6 |
| Juan José García Ovalle | Tabancura | 2 | 9.51 | 3 q |
| Franco Antonio Stefoni Alcayaga | Andrée English School | 4 | 9.64 | 5 q |
| Domingo Jimenez Pardo | Saint George's College | 7 | 9.79 | 8 q |
| Diego Contreras Elgueta | Pumahue | 6 | 10.61 | 25 |
| Domingo Perez Convalia | Everest | 3 | 10.99 | 30 |
| Martin Alejandro Riveros Martinez | Liceo Salesiano Camilo Ortúzar Montt | 8 | 11.00 | 31 |
| Benjamín Andrés Araya Munizaga | Scuola Italiana - Vittorio Montiglio | 5 | DNS | |
| Serie 7 |
| Tomás Arenas Kutz | Tabancura | 4 | 10.00 (10.0000) | 12 |
| Misael Alexander Rodriguez R | Escuela Atlética Ganbaru | 7 | 10.14 | 20 |
| Raimundo Valdés Folsch | Santo Domingo | 6 | 10.75 | 26 |
| Clemente Bustos Cortez | The Newland School | 5 | 11.03 | 32 |
| Domingo Herrera Palacios | Everest | 2 | DNS | |
| Santiago Zañartu Pinto | Monte Tabor | 3 | DNS | |
| Agustín Rosas Buzeta | Andrée English School | 8 | DNS | |
