| Adolfo Albornoz Fernandez | Instituto Chacabuco | | DNS | |
| Alonso Hormazabal Covarrubias | Instituto Chacabuco | | DNS | |
| Bruno Finger Cardenas | Talagante Garden School | | DNS | |
| Franco Andrés Gabella Fuentes | De La Salle | | DNS | |
| Gabriel Abarca Pasten | Saint Louis School - Maipú | | DNS | |
| Joaquín León Ávalos Pérez | Boston Academy Laguna del Sol | | DNS | |
| Jose Domingo Pardo Silva | Instituto Rafael Ariztía | | DNS | |
| Juan Pablo Morales Corradini | De La Salle | | DNS | |
| Mateo Vásquez Venegas | Carampangue | | DNS | |
| Matias Nicolas Barra Castro | Manquecura - Ciudad de los Valles | | DNS | |
| Mauricio Avila Tassara | Instituto Rafael Ariztía | | DNS | |
| Nicolas Carquin Cataldo | De Santa María - El Monte | | DNS | |
| Roberto Rojas Carrillo | Instituto Chacabuco | | DNS | |
| Santiago Alonso Escobar Aguirre | Carampangue | | DNS | |
| Santiago Andrés Castillo Vlacid | Arnaldo Falabella | | DNS | |
| Santiago Felipe Varas Soto | Academia de Humanidades | | DNS | |
| Tomas Lopez Aguilera | Escuela El Pino Viejo de Lonquén | | DNS | |
| Vicente Diaz Rodriguez | Escuela El Pino Viejo de Lonquén | | DNS | |
| Serie 1 |
| Silvestre Pavic Garea | Sankt Thomas Morus | 6 | 10.45 | 1 q |
| Juan Pablo Peña Contreras | Maitenes | 5 | 11.35 | 2 |
| Martín Gabriel Lamatta Diaz | Boston Academy Laguna del Sol | 3 | 12.47 | 3 |
| Serie 2 |
| Alonso Ravanal Villalobos | Colegio Los Alpes de Maipú | 1 | 11.02 | 1 q |
| Damian Mingo Colvin | Trebulco School | 4 | 11.06 | 2 q |
| Cesar Mateo Aguilera Campos | Academia de Humanidades | 5 | 12.76 | 3 |
| Ezequiel Antaku Banus Varela | Greenfield School | 2 | DNS | |
| Agustin Montenegro Rios | Internacional Alba | 3 | DNS | |
| Alfredo Beltrami Martinez | Instituto Rafael Ariztía | 6 | DNS | |
| Serie 3 |
| Martín Antonio Reyes Fuenzalida | Boston Academy Laguna del Sol | 6 | 11.85 | 1 |
| Agustín Leiva Machuca | De La Salle | 1 | 13.24 | 2 |
| Manuel Alejandro Gallegos Cortes | De Santa María - El Monte | 2 | 13.85 | 3 |
| Mateo Tamargo Lecourant | Las Condes | 4 | 14.64 | 4 |
| Gabriel Reid Saieh | La Misión de Calera de Tango | 3 | DNS | |
| Jeremias Amaro Herrera Bustos | Greenfield School | 5 | DNS | |
| Serie 4 |
| Luciano Bravo Barrera | Greenfield School | 3 | 11.39 | 1 |
| Felipe Ignacio Tuteleers Loyola | Sankt Thomas Morus | 4 | 11.62 | 2 |
| Alonso Javier Ortiz Espinoza | Alberto Pérez | 1 | 11.68 | 3 |
| Thomas Vidal Canales | English College - Talagante | 5 | 12.14 | 4 |
| Alonso Aceituno Roa | De Santa María - El Monte | 2 | 12.31 | 5 |
| Santiago De Jesus Mago Soto | Arnaldo Falabella | 5 | 13.53 | 6 |
| Serie 5 |
| Vicente Ignacio Gentico Molina | Carampangue | 5 | 11.03 | 1 q |
| Santiago Rojas Nadal | Trebulco School | 6 | 11.27 | 2 q |
| Alonso Torres Moreno | La Misión de Calera de Tango | 4 | 11.55 | 3 |
| Baudilio Ernesto Mendez Parra | Arnaldo Falabella | 2 | 14.28 | 4 |
| Clemente González Dois | La Misión de Calera de Tango | 1 | DNS | |
| Ruben Maxiliem Joseph | Escuela El Pino Viejo de Lonquén | 3 | DNS | |
| Serie 6 |
| Emilio Retamal Guajardo | Trebulco School | 1 | 10.91 | 1 q |
| Egon Stein Adolph Keim Cáceres | Liceo A-119 Talagante | 2 | 12.51 | 2 |
| Lucca Sebastián Satriani Vidaurre | De La Salle | 5 | 12.54 | 3 |
| Serie 7 |
| Cristóbal Beyer Silva | Academia de Humanidades | 1 | DNS | |
