| Atleta | Colegio | Pista | Resultado | Lugar |
|---|---|---|---|---|
| Serie 1 V.V. +0.2 | ||||
| Tomas Vial Ruiz Tagle | Tabancura | 2 | 11.23 (CR) | 1 q |
| Vicente Leisewitz Muñoz | Cumbres | 3 | 11.37 | 2 q |
| Andrés Fernández Valdés | San Benito | 1 | 11.56 | 4 q |
| Vicente Parada Muñoz | Cordillera | 8 | 11.81 | 8 q |
| Vicente Julio Carrasco | Verbo Divino | 4 | 12.38 | 13 |
| Bruno Brufau A | Everest | 7 | 12.62 | 14 |
| Serie 2 V.V. +0.3 | ||||
| Raimundo Velasco Barañao | Verbo Divino | 7 | 11.47 | 3 q |
| José Velasco González | Saint George's College | 2 | 11.57 | 5 q |
| Benjamin Oscar Solari Becker | San Anselmo | 1 | 11.58 | 6 q |
| Joaquin Vial Fleischmann | Cordillera | 5 | 11.77 | 7 q |
| Patricio Pinto Muñoz | Cumbres | 6 | 11.86 | 9 |
| Santiago Eyzaguirre Ercilla | Tabancura | 3 | 11.94 | 10 |
| Pedro Navarrete Correa | Everest | 4 | 12.17 | 11 |
| Santiago Vildosola Velasco | SSCC Manquehue | 8 | 12.22 | 12 |
