| Serie 1 V.V. -0.1 |
| Pedro Ismael Reyes Parada | SSCC Alameda | 4 | 11.40 | 2 q |
| Martín Steffens Sanz | Cabo de Hornos | 5 | 11.74 | 4 q |
| Eduardo Cisneros Del Fierro | San Francisco Javier de Huechuraba | 2 | 12.22 | 19 |
| Benjamin Araya Fuentes | Padre Hurtado y Juanita de los Andes | 3 | 12.45 | 26 |
| Maximiliano Rosmanich Bravo | Verbo Divino | 8 | 12.54 | 30 |
| Felipe Osorio Muñoz | Domingo Matte Mesías | 6 | 12.58 | 32 |
| Javier Lopez Sagredo | Instituto Alonso de Ercilla | 1 | 14.11 | 52 |
| Agustin Cox Prat | San José de Chicureo | 7 | DNS | |
| Serie 2 V.V. +0.0 |
| Joaquin Nicolas Jaramillo Vasquez | Montessori de Talca | 4 | 11.31 | 1 q |
| Matías González Romero | Alemán de Santiago | 5 | 11.89 | 7 q |
| Joaquin Alfonso Carrasco Villagran | Institución Teresiana | 6 | 12.53 | 28 |
| Diego Undurraga García-Huidobro | Monte Tabor | 1 | 12.91 | 41 |
| Tomas Lama Beaujanot | Highlands | 7 | 13.11 | 45 |
| Sebastian Ignacio Sotomayor Mestre | San Anselmo | 2 | DNS | |
| José Tomás Dunner Abarzua | Everest | 3 | DNS | |
| Jorge Hayler Browne | San Benito | 8 | DNS | |
| Serie 3 V.V. +0.1 |
| Gustavo Ríos A | San Anselmo | 5 | 11.98 | 10 |
| Lucas Palacios Nazif | SSCC Manquehue | 8 | 12.16 | 15 |
| Julián Adolfo Riveros Tzanis | Los Ceibos | 3 | 12.39 | 24 |
| José Joaquin Pinto Retamal | San Ignacio El Bosque | 2 | 12.78 | 37 |
| Santiago Bengolea Valenzuela | Highlands | 7 | 13.46 | 48 |
| Alejandro Esteban Uribe Araneda | SSCC Alameda | 1 | 13.55 | 49 |
| Bruno Rickenberg Benedetti | The Greenland School | 4 | DNS | |
| Patricio Busquet Llona | San Benito | 6 | DNS | |
| Serie 4 V.V. +0.4 |
| Manuel Gonzalez Mallol | Institución Teresiana | 4 | 11.47 | 3 q |
| Cristóbal Pedro Bernales Magnere | Verbo Divino | 5 | 11.98 | 11 |
| Pedro Morales Délano | Saint George's College | 3 | 12.19 | 16 |
| Gianlucca José Perrotta Massú | Carampangue | 8 | 14.39 | 53 |
| Rafael Jordán Joannon | San Isidro | 1 | DNS | |
| Nicolas Cifras Coll | Trebulco School | 2 | DNS | |
| Bruno Gonzalez Muñoz | SSCC Alameda | 6 | DNS | |
| Gabriel Del Carpio Jofré | La Misión de Calera de Tango | 7 | DNS | |
| Serie 5 V.V. -0.3 |
| Cristobal Vázquez Salazar | Carampangue | 5 | 12.23 | 20 |
| Alonso Aillon Rojas | La Misión de Calera de Tango | 3 | 12.66 | 35 |
| Gabriel Fernando Contreras Griott | Instituto Alonso de Ercilla | 7 | 12.86 | 39 |
| Javier Benjamin Ratto Escobar | Instituto Alonso de Ercilla | 6 | 13.12 | 46 |
| Noah Edwards Latham | The Grange School | 1 | DNS | |
| Lucas Hüe Grüner | San Benito | 2 | DNS | |
| Francisco Caparros Fuentes | SSCC Manquehue | 4 | DNS | |
| Karam Elias Hanna Hanna | Lincoln IA Lo Barnechea | 8 | DNS | |
| Serie 6 V.V. -0.5 |
| Agustin Valdes Zegers | Tabancura | 4 | 11.76 | 5 q |
| Luis Francisco Cano Reyes | Polivalente Don Orione | 5 | 12.20 | 18 |
| Martin Seefeldt Karque | San Francisco Javier de Huechuraba | 7 | 12.37 | 22 |
| Pedro Javier Aranguiz Rivadeneira | Cordillera | 1 | 12.83 | 38 |
| Andrés Ferrer Chubretovic | Cordillera | 2 | 12.88 | 40 |
| Raimundo Navarro Silva | La Misión de Calera de Tango | 8 | 14.10 | 51 |
| Sebastian Herrera Martinez | San José de Chicureo | 3 | DNS | |
| Miguel Garrido Urzua | Trebulco School | 6 | DNS | |
| Serie 7 V.V. +0.3 |
| Pedro Prieto Castelblanco | San José de Chicureo | 4 | 12.04 | 13 |
| Matías O'shea Petrinovic | Everest | 1 | 12.40 | 25 |
| Gabriel Enrique Escalona Ilabaca | Liceo Salesiano Camilo Ortúzar Montt | 3 | 12.53 | 29 |
| Francisco Barrios Lara | San Ignacio El Bosque | 2 | 12.57 | 31 |
| Santiago Clavel Gualda | San Isidro | 5 | 13.86 | 50 |
| Juan Diego Ossandón Lira | San Isidro | 6 | DNS | |
| Joaquín Pérez Guajardo | Instituto San Martín - Curicó | 7 | DNS | |
| Franco Andrés Ginocchio Aguayo | San Nicolás Diacono - Colina | 8 | DNS | |
| Serie 8 V.V. +0.1 |
| Pedro Irarrazaval Valdes | Tabancura | 4 | 11.89 | 8 q |
| Vicente Perez Pellegrini | Verbo Divino | 1 | 12.19 | 17 |
| Sebastian Lopez Capote | Saint George's College | 3 | 12.38 | 23 |
| Borja Guillermo Yañez Morales | Monte Tabor | 2 | DNS | |
| Lucas Palacios Undurraga | San Anselmo | 5 | DNS | |
| Marcelo Ambiado Rubilar | Saint Gabriel's School | 6 | DNS | |
| Joaquin Alberto Miño Farias | Instituto San Martín - Curicó | 7 | DNS | |
| Sebastian Sanhueza Acuña | CDAR | 8 | DNS | |
| Serie 9 V.V. -0.3 |
| Clemente Ruiz Bianchini | Cumbres | 4 | 11.95 | 9 |
| Luis Enrique Ibarra Lobos | Liceo Bicentenario - Talagante | 5 | 11.98 | 12 |
| Alberto Trujillo Gongora | Saint Gabriel's School | 3 | 12.62 | 34 |
| Isaac Guzman Narvaez | San Ignacio El Bosque | 1 | 13.02 | 42 |
| Nicolás Ignacio Fuica Sepúlveda | San Nicolás Diacono - Colina | 7 | 13.02 | 43 |
| Luis Taylor Taylor | Highlands | 2 | 13.07 | 44 |
| Martín Pérez Barrientos | Trebulco School | 6 | DNS | |
| Nicolas Santiagos Larrain | SSCC Manquehue | 8 | DNS | |
| Serie 10 V.V. +0.1 |
| Paulo Noemi Zuleta | Saint George's College | 4 | 11.83 | 6 q |
| Joaquín Donoso Faundez | Everest | 8 | 12.08 | 14 |
| Benjamin Soto Liberona | Cordillera | 1 | 12.23 | 21 |
| Francisco Errázuriz Lohmann | Cumbres | 2 | 12.52 | 27 |
| Kevin Andrés Torres Gómez | Forjadores - Peñaflor | 3 | 12.59 | 33 |
| Santiago Robeson Videla | Saint Gabriel's School | 5 | 12.74 | 36 |
| Emilio Figueroa Nicolai | Cumbres | 6 | 13.16 | 47 |
| Maximiliano Nilo Heilig | Carampangue | 7 | DNS | |
