| Serie 1 |
| Clemente Hevia Valdivieso | Tabancura | 3 | 11.48 | 1 q |
| Bruno Mateo Sáez Bergamasco | Verbo Divino | 5 | 11.52 | 2 q |
| Santiago Vial Ruiz Tagle | Tabancura | 7 | 12.07 | 3 |
| Felipe Riesco Cruzat | Everest | 8 | 12.10 | 4 |
| Felipe Florit Irarrázaval | Cumbres | 6 | 12.52 | 5 |
| Nicolás Matamala Latelier | San Anselmo | 2 | 12.79 | 6 |
| Antonio Pereira Vasquez | Saint George's College | 4 | | |
| Raimundo Lazo Rivera | SSCC Manquehue | 1 | | |
| Serie 2 |
| Daniel Larco Albertini | Saint George's College | 4 | 11.26 | 1 q |
| Borja Errazuriz Vergara | Cordillera | 1 | 11.61 | 2 q |
| Tomás Irarrázaval Varela | Cumbres | 5 | 11.73 | 3 |
| Eduardo Mackay Delaveau | San Anselmo | 7 | 11.86 | 4 |
| Maximiliano Mariné Durandeau | Cumbres | 3 | 12.05 | 5 |
| Agustín José Chávez Zurita | Everest | 2 | 12.33 | 6 |
| Leon Clemente Walker Depassier | SSCC Manquehue | 6 | | |
| Matias Villaseca Torres | San Anselmo | 8 | | |
| Serie 3 |
| Santiago Hurtado Cetty | Cordillera | 2 | 11.54 | 1 q |
| Tomas Rabat Barros | Tabancura | 6 | 11.61 | 2 q |
| Joaquin Torres Kolbach | Verbo Divino | 5 | 11.62 | 3 q |
| Baltazar Valenzuela Bruce | Saint George's College | 4 | 11.63 | 4 q |
| Diego Molina Torres | Verbo Divino | 3 | 11.74 | 5 |
| Jose Ignacio Ramirez Bresciani | SSCC Manquehue | 7 | 12.12 | 6 |
| Martín Valderrama Wiehandt | Everest | 8 | 12.59 | 7 |
