| Atleta | Colegio | Pista | Resultado | Lugar |
|---|---|---|---|---|
| Serie 1 | ||||
| Alonso Guzman Tondreau | Saint George's College | 2 | 11.21 | 1 q |
| Santiago Barberis Aliaga | Saint George's College | 6 | 12.06 | 2 q |
| Lucas Moreno Tagle | Verbo Divino | 1 | 12.90 | 7 q |
| Juan Hurtado Cetty | Cordillera | 7 | 13.04 | 8 q |
| Sebastián Pizarro Bengolea | Cordillera | 4 | 13.32 | 10 |
| Alejandro Eyzaguirre Ugarte | Tabancura | 5 | 13.40 | 11 |
| Tomas Irarrazabal Browne | Tabancura | 8 | 14.08 | 14 |
| Serie 2 | ||||
| Sebastían Aravena Calderón | San Anselmo | 4 | 12.13 | 3 q |
| Diego Muñoz Silva | Tabancura | 8 | 12.25 | 4 q |
| Pablo Mackenna Zegers | Verbo Divino | 5 | 12.58 | 5 q |
| Maximiliano Matta Schilling | Saint George's College | 2 | 12.78 | 6 q |
| Raimundo Buzeta Fernandez | Verbo Divino | 6 | 13.31 | 9 |
| Benjamín Correa Tocornal | Cumbres | 7 | 13.71 | 12 |
| Ignacio Racioppi Elewaut | Cordillera | 3 | 13.74 | 13 |
