| Atleta | Colegio | Pista | Resultado | Lugar |
|---|---|---|---|---|
| Serie 1 | ||||
| Santiago Mena Aguirre | SSCC Manquehue | 3 | 8.61 | 1 q |
| José Ignacio SÃvori Valderrama | Alemán de Chillán | 4 | 8.93 | 4 q |
| José Palomer Polloni | SSCC Manquehue | 6 | 9.48 | 8 |
| José Manuel Repenning Santelices | San Ignacio El Bosque | 1 | DNS | |
| Pedro Herrera Garrido | San Anselmo | 2 | DNS | |
| Diego Velasco Carcamo | Everest | 5 | DNS | |
| Serie 2 | ||||
| Pedro Beas Aninat | Padre Hurtado | 3 | 8.87 | 2 q |
| Santiago Ugarte Bustamante | Tabancura | 4 | 8.99 | 5 q |
| Maximiliano Cabello Valenzuela | San Ignacio El Bosque | 2 | 9.19 | 6 q |
| Pablo Vial Tampier | San Benito | 5 | 9.57 | 9 |
| Daniel Sanhueza Perez | Everest | 6 | 9.66 | 10 |
| Cristóbal Raimundo Sánchez Jarpa | San Anselmo | 1 | DNS | |
| Serie 3 | ||||
| Manuel José Hilliger Valdivia | Alemán de Chillán | 2 | 8.88 | 3 q |
| Salvador Landea Winter | San Benito | 3 | 9.66 | 11 |
| Nicolás Jensen Auras | Cordillera | 5 | 9.69 | 12 |
| Lucas Figueroa Tornero | San Benito | 4 | 9.37 | (F.C.) |
| Serie 4 | ||||
| Santigo Carmona Atton | Padre Hurtado | 3 | 9.24 | 7 |
| Juan Sebastian Brown Garretón | San Benito | 5 | 9.33 | (F.C.) |
| Cristóbal Lagos Friedl | San Benito | 4 | 9.98 | (F.C.) |
| Maximiliano Ruiz-Tagle Donoso | Cordillera | 6 | DNS | |
