| Serie 1 V.V. -0.1 |
| Pedro Ismael Reyes Parada | SSCC Alameda | 4 | 11.40 | 4 q |
| Andres Refusta Fuentes | Lincoln IA Chicureo | 5 | 11.71 | 10 |
| Maximiliano Rosmanich Bravo | Verbo Divino | 1 | 12.25 | 24 |
| Francisco Errázuriz Lohmann | Cumbres | 2 | 12.53 | 28 |
| Gustavo Ríos A | San Anselmo | 3 | DNS | |
| Martin Alzérreca Duarte | San Ignacio El Bosque | 6 | DNS | |
| Alfredo Vicari Torres | Saint George's College | 7 | DNS | |
| Lucca Paolo Davagnino Loguercio | San Ignacio El Bosque | 8 | DNS | |
| Serie 2 V.V. +0.0 |
| Juan Pablo Nordetti Llull | Trebulco School | 4 | 11.24 | 2 q |
| Manuel Gonzalez Mallol | Institución Teresiana | 5 | 11.36 | 3 q |
| Francisco Caparros Fuentes | SSCC Manquehue | 3 | 11.61 | 7 q |
| José Tomás Ochagavía Gubbins | La Cruz de Machalí | 6 | 11.80 | 12 |
| Joaquín Donoso Faundez | Everest | 7 | 12.07 | 20 |
| Luis Francisco Cano Reyes | Polivalente Don Orione | 8 | 12.17 | 23 |
| Cristian Soublette Tocornal | San José de Chicureo | 2 | 12.64 | 29 |
| Bruno Gonzalez Muñoz | SSCC Alameda | 1 | 12.69 | 30 |
| Serie 3 V.V. -0.1 |
| Luis Enrique Ibarra Lobos | Liceo Bicentenario - Talagante | 6 | 11.80 | 13 |
| Paulo Noemi Zuleta | Saint George's College | 3 | 11.88 | 15 |
| Fermin Valenzuela Leppe | Tabancura | 7 | 12.32 | 25 |
| Erik Santiago Tapasco Lozano | Casa de Talleres San Vicente de Paul | 1 | 12.35 | 26 |
| Matías O'shea Petrinovic | Everest | 2 | DNS | |
| Joaquin Nicolas Jaramillo Vasquez | Montessori de Talca | 4 | DNS | |
| Bruno Rickenberg Benedetti | The Greenland School | 5 | DNS | |
| Clemente Zenteno Matura | Padre Hurtado y Juanita de los Andes | 8 | DNS | |
| Serie 4 V.V. +0.5 |
| Alejandro Antonio Ricketts Martínez | Costa Rica | 1 | 11.00 | 1 q |
| Agustin Valdes Zegers | Tabancura | 4 | 11.45 | 5 q |
| Vicente Perez Pellegrini | Verbo Divino | 6 | 11.76 | 11 |
| Cristóbal Pedro Bernales Magnere | Verbo Divino | 7 | 11.88 | 16 |
| Juan Pablo Baeza Calvo | Tabancura | 3 | 12.04 | 19 |
| Paolo Sarri Pino | The Southern Cross School | 8 | 12.12 | 22 |
| Diego José Guzman Undurraga | Everest | 2 | DNS | |
| Luis Santiago Mella Ibaceta | Internado Nacional Barros Arana | 5 | DNS | |
| Serie 5 V.V. +1.1 |
| Clemente Ruiz Bianchini | Cumbres | 5 | 11.70 | 8 q |
| Pedro Prieto Castelblanco | San José de Chicureo | 3 | 11.70 | 9 |
| Sebastian Ignacio Sotomayor Mestre | San Anselmo | 6 | 11.87 | 14 |
| Benjamin Jerez Ibarra | San Antonio del Baluarte de Rengo | 7 | 11.92 | 17 |
| Sebastian Herrera Martinez | San José de Chicureo | 2 | DNS | |
| Joaquin Alberto Miño Farias | Instituto San Martín - Curicó | 4 | DNS | |
| Benjamin Araya Fuentes | Padre Hurtado y Juanita de los Andes | 8 | DNS | |
| Serie 6 V.V. +0.2 |
| Martín Steffens Sanz | Cabo de Hornos | 4 | 11.54 | 6 q |
| Cristobal Vázquez Salazar | Carampangue | 7 | 12.03 | 18 |
| Rodrigo Marqíquez Lujan | San Francisco Javier de Huechuraba | 8 | 12.09 | 21 |
| Joaquin Alfonso Carrasco Villagran | Institución Teresiana | 2 | 12.47 | 27 |
| Matias David Mateluna González | Jesús Servidor | 5 | 13.21 | 31 |
| Pedro Irarrazaval Valdes | Tabancura | 3 | DNS | |
| Eduardo Cisneros Del Fierro | San Francisco Javier de Huechuraba | 6 | DNS | |
