| Atleta | Colegio | Pista | Resultado | Lugar |
|---|---|---|---|---|
| Serie 1 | ||||
| Sebastian Lopez Capote | Saint George's College | 5 | 12.55 | 1 q |
| Alessandro Aburto Albasini | SSCC Manquehue | 6 | 12.79 | 2 q |
| Martín Encina Concha | Verbo Divino | 3 | 13.16 | 3 q |
| Benjamín Lehuedé Dazín | Saint George's College | 2 | 13.33 | 4 q |
| José Pedro Widoycovic Herrera | Everest | 4 | 13.99 | 5 |
| Arturo Marin Cousiño | Tabancura | 7 | ||
| Serie 2 | ||||
| Sebastian Ignacio Sotomayor Mestre | San Anselmo | 4 | 12.27 | 1 q |
| Pedro Morales Délano | Saint George's College | 5 | 12.53 | 2 q |
| Lucas Palacios Nazif | SSCC Manquehue | 3 | 12.89 | 3 q |
| Jaime Matas Siri | Everest | 6 | 13.33 | 4 q |
| Nicolas Santiagos Larrain | SSCC Manquehue | 7 | 13.46 | 5 |
| Raimundo Piderit Brito | Cordillera | 8 | 13.97 | 6 |
