| Atleta | Colegio | Pista | Resultado | Lugar |
|---|---|---|---|---|
| Serie 1 | ||||
| Domingo Hurtado Montes | Cordillera | 1 | 9.96 | 1 q |
| Mateo Arancibia Estebanez | San Benito | 3 | 10.41 | 9 |
| BenjamÃn Vargas Cam | Andrée English School | 6 | 10.47 | 10 |
| Mateo Torrejon May | SSCC Manquehue | 4 | 10.50 | 11 |
| Jose Manuel Toro Fuentes | San Anselmo | 5 | 10.94 | 20 |
| Maximo Young Artigas | Cumbres | 2 | 11.13 | 21 |
| Serie 2 | ||||
| Vicente Samacoitz Montt | Cordillera | 5 | 10.04 | 2 q |
| Emiliano Alberto Daroch Gary | Andrée English School | 6 | 10.11 | 5 q |
| Baltazar Battaglia Fantoni | Cumbres | 1 | 10.50 | 12 |
| Vicente Ismael Rengifo LarraÃn | San Anselmo | 4 | 10.79 | 18 |
| Agustin Dominguez RodrÃguez | Verbo Divino | 2 | 11.17 | 22 |
| Pedro Covarrubias Schalscha | SSCC Manquehue | 3 | DNS | |
| Serie 3 | ||||
| Sergio Aviles Ruiz-Tagle | Verbo Divino | 2 | 10.04 | 3 q |
| Juan Luis Montes Delano | Huinganal | 5 | 10.24 | 6 q |
| Alfonso Emilio Astorga Navarrete | Andrée English School | 4 | 10.51 | 13 |
| Felipe Aguilera Sepulveda | Cordillera | 1 | 10.54 | 14 |
| Julio AgustÃn Montenegro Barahona | San Anselmo | 6 | 10.72 | 15 |
| Eduardo Gabriel Suazo De Ferari | San Benito | 3 | 10.74 | 17 |
| Serie 4 | ||||
| Alonso Antonio Baquedano Carrasco | Verbo Divino | 2 | 10.05 | 4 q |
| Tomás GarcÃa Roberts | San Benito | 5 | 10.28 | 7 |
| Santiago Mena Aguirre | SSCC Manquehue | 1 | 10.37 | 8 |
| Lucas Williams Velasco | Cumbres | 4 | 10.72 | 16 |
| Benjamin Thonet Albornoz | Huinganal | 3 | 10.84 | 19 |
