| Serie 1 |
| Tomás Arenas Kutz | Tabancura | 5 | 10.27 | 9 q |
| Pedro Garcia Huidobro Finlay | SSCC Manquehue | 2 | 10.32 | 12 |
| Alfonso Lecaros Omeñaca | Huinganal | 4 | 10.35 | 13 |
| Martín Villegas Vergara | San Francisco de Asís | 3 | 10.40 | 16 |
| Benjamin De La Fuente Figueroa | San Ignacio El Bosque | 8 | 10.46 | 20 |
| Maximiliano Vennekool Moyano | Puerto Varas | 7 | 10.63 | 25 |
| Serie 2 |
| Manuel Ortuzar Buttazzoni | San Ignacio El Bosque | 8 | 10.39 | 15 |
| Pedro Inglesi Croxatto | Tabancura | 7 | 10.44 | 17 |
| Nicolás Guillermo Gesche Lunecke | Puerto Varas | 3 | 10.57 | 23 |
| Simon Ramm Pino | SSCC Manquehue | 2 | 10.92 | 32 |
| Arturo Raby Carvajal | Huinganal | 5 | 11.53 | 41 |
| Serie 3 |
| Domingo Jimenez Pardo | Saint George's College | 5 | 10.25 | 7 q |
| Tomás Cornejo Cabello | Highlands | 7 | 10.26 | 8 q |
| Melchor Gregorio Silva-Paredes Antúnez | San Ignacio El Bosque | 4 | 10.48 | 21 |
| Clemente Fernandez Hurtado | Huinganal | 8 | 10.62 | 24 |
| Sebastían Aravena Calderón | San Anselmo | 3 | 10.77 | 29 |
| Raimundo Valdés Folsch | Santo Domingo | 2 | 11.78 | 43 |
| Federico Plass Schneider | Monte Tabor | 6 | 12.98 | 45 |
| Serie 4 |
| Alonso Guzman Tondreau | Saint George's College | 3 | 10.11 | 3 q |
| Pedro Prieto Noguera | Cordillera | 4 | 10.70 | 26 |
| Luis Lagomarsino Sandoya | San Francisco de Asís | 2 | 10.76 | 28 |
| Joaquín Venegas-Puga Rodriguez | San Anselmo | 8 | 10.96 | 33 |
| Gustavo Valderrama Leitao | Highlands | 5 | 10.99 | 34 |
| Serie 5 |
| Martín Montaner Lagos | Saint George's College | 7 | 10.38 | 14 |
| Sebastián Vidal Cáraves | San Anselmo | 5 | 10.44 | 18 |
| Benjamín Correa Tocornal | Cumbres | 4 | 10.53 | 22 |
| Gabriel Ruiz Giralda | Padre Hurtado y Juanita de los Andes | 2 | 10.89 | 31 |
| Felipe Machuca Barria | Alemán de Santiago | 6 | 11.24 | 38 |
| Clemente Diaz Aguilar | Trebulco School | 8 | 12.28 | 44 |
| Serie 6 |
| Martin Astaburuaga Coddou | Verbo Divino | 3 | 9.69 | 1 q |
| Benjamin Ignacio Tejos Florenzano | Everest | 5 | 10.23 | 6 q |
| Jose Tomas Recabarren Cares | Padre Hurtado y Juanita de los Andes | 4 | 10.75 | 27 |
| Benjamin Hoppe Cuartas | San Francisco de Asís | 6 | 10.82 | 30 |
| Juan Pablo Ceballos Ventura | Cumbres | 2 | 11.18 | 37 |
| Serie 7 |
| Clemente Franken Zaldivar | Verbo Divino | 2 | 10.20 | 4 q |
| Lucas Harraca Lopez | Everest | 6 | 10.45 | 19 |
| Benjami Cid Arrigada | San Marcos - Curicó | 3 | 11.12 | 36 |
| Vicente Burgos Domínguez | Trebulco School | 8 | 11.41 | 40 |
| Serie 8 |
| Juan José García Ovalle | Tabancura | 4 | 9.84 | 2 q |
| Salvador East Leon | SSCC Manquehue | 8 | 10.30 | 10 |
| Agustin Julio Carrasco | Verbo Divino | 7 | 10.30 | 11 |
| Gabriel Flores Cardemil | Trebulco School | 2 | 11.11 | 35 |
| Pedro Undurraga Aubert | Everest | 3 | 11.28 | 39 |
| Nicolás Vial Turner | Puerto Varas | 5 | 11.66 | 42 |
