| Atleta | Colegio | Pista | Resultado | Lugar |
|---|---|---|---|---|
| Serie 1 | ||||
| Tomas Lorca Lewin | SSCC Manquehue | 2 | 11.94 | 4 q |
| Joaquin Vila Villalobos | Marista - Diego Echeverría | 5 | 12.02 | 5 q |
| Santiago Goñi Garcés | San Benito | 4 | 12.16 | 6 q |
| Julio Nazar Diemer | Lycée Antoine de Saint-Exupéry | 7 | 12.44 | 8 q |
| Martín Montaner Lagos | Saint George's College | 8 | 12.48 | 9 |
| Gael Edgardo Ayala Cornejo | María Luisa Bombal | 1 | 13.10 | 10 |
| Jose Pablo Jimenez Munizaga | SSCC Manquehue | 3 | DNS | |
| Sebastian Tapia Ruiz | Instituto Chacabuco | 6 | DNS | |
| Serie 2 | ||||
| Pablo Valdivia Hurtado | Saint George's College | 5 | 11.82 | 1 q |
| Sebastián Guerrero Carvallo | San Benito | 6 | 11.89 | 2 q |
| Mateo Guzman Pizarro | SSCC Manquehue | 7 | 11.89 | 3 q |
| Domingo Jimenez Pardo | Saint George's College | 1 | 12.26 | 7 q |
| Cristobal Rios Martinez | Instituto Chacabuco | 3 | 13.11 | 11 |
| Bastián Alejandro Andrés Díaz Carrasco | María Luisa Bombal | 8 | 13.32 | 12 |
| Andres Antonio Astete Jaque | Marista - Diego Echeverría | 2 | DNS | |
| Benjamín José Valenzuela Imperatore | San Benito | 4 | DNS | |
