| Serie 1 V.V. +0.1 |
| Martin Montesinos Lopez De Santa María | Saint George's College | 1 | 11.20 | 1 q |
| Maximo Correa Montero | Everest | 7 | 11.53 | 3 q |
| Juan Ibañez Larrain | Cordillera | 2 | 11.60 | 5 q |
| Vicente Yañez Maldonado | Padre Hurtado y Juanita de los Andes | 8 | 11.98 | 10 |
| Tomás Arenas Kutz | Tabancura | 4 | 12.17 | 14 |
| Manuel Guzman Garcia De La Huerta | Verbo Divino | 3 | DNS | |
| Julio Bertrandt Velasco | SSCC Manquehue | 5 | DNS | |
| Manuel Ortuzar Buttazzoni | San Ignacio El Bosque | 6 | DNS | |
| Serie 2 V.V. -0.1 |
| Tomas Leon Valenzuela | SSCC Manquehue | 3 | 11.56 | 4 q |
| Nicolas Iriarte Tagle | Padre Hurtado y Juanita de los Andes | 5 | 11.65 | 6 q |
| Hernán Muñoz Silva | Tabancura | 6 | 11.73 | 7 q |
| Sebastian Rencoret Escala | Saint George's College | 8 | 11.79 | 8 q |
| Lucas Moreno Tagle | Verbo Divino | 7 | 11.86 | 9 |
| Benjamin Alvarez Cofre | Cordillera | 4 | 12.27 | 15 |
| Domingo Herrera Palacios | Everest | 2 | DNS | |
| Serie 3 V.V. +0.5 |
| Juan José García Ovalle | Tabancura | 8 | 11.48 | 2 q |
| Vicente Alfonso Coronado Acuña | San Ignacio El Bosque | 4 | 11.98 | 11 |
| Ismael Espinosa Arriagada | Verbo Divino | 5 | 12.06 | 12 |
| Manuel Kraemer Rioseco | SSCC Manquehue | 6 | 12.12 | 13 |
| Domingo Jimenez Pardo | Saint George's College | 2 | 12.29 | 16 |
| Martin Rosende Barros | Cordillera | 3 | 12.35 | 17 |
| Juan Vicente Rodriguez Flores | Padre Hurtado y Juanita de los Andes | 7 | DNS | |
