| Serie 1 |
| Mauricio Alberto Montoya Vilches | Saint John's School - Concepción | 4 | 12.11 | 1 q |
| Juan Cristobal Jobet Scheel | Saint John's School - Concepción | 5 | 12.33 | 6 q |
| Vicente Alfonso Cabrera Martinez | Bradford School | 7 | 12.37 | 7 q |
| Sebastian Ignacio Valdes Silva | The Mackay School | 3 | 13.09 | 17 |
| Agustin Neumann Castro | Trebulco School | 6 | 13.19 | 20 |
| Daniel Lepeley Rubio | The Mayflower School | 2 | 13.62 | 24 |
| Marcel León Yañez | Saint Gabriel's School | 8 | 13.72 | 25 |
| Serie 2 |
| Iñigo Fernández García | Craighouse School | 2 | 12.29 | 5 q |
| Vicente García Loyola | Trebulco School | 4 | 12.67 | 8 q |
| Martin Alejandro Figueroa Farias | Dunalastair - Peñalolén | 3 | 13.06 | 15 |
| Martín Ignacio Gonzalez Carrasco | Dunalastair - Peñalolén | 6 | 13.14 | 18 |
| Dante Saure Quinteros | Saint Gabriel's School | 1 | 13.15 | 19 |
| Vicente Velasco Torrealba | Dunalastair - Las Condes | 8 | 13.30 | 21 |
| Pablo Martín Roa Ramírez | The Wessex School - Concepción | 7 | 13.52 | 23 |
| Serie 3 |
| Silvestre Pilasi Albertz | Craighouse School | 2 | 12.21 | 3 q |
| Cristóbal Felipe Castelli Izquierdo | The Wessex School - Concepción | 7 | 12.75 | 9 |
| Nicco Reposi Sanz | Santiago College | 6 | 13.03 | 13 |
| Bruno Ignacio Poblete Le-Bert | The Wessex School - Concepción | 5 | 13.06 | 16 |
| Vicente Burgos Domínguez | Trebulco School | 8 | 13.33 | 22 |
| Joaquin Stein Leonicio | Dunalastair - Las Condes | 3 | | |
| Vicente García Loyola | Trebulco School | 4 | | |
| Serie 4 |
| Franco Faundez Ferrini | Craighouse School | 8 | 12.11 | 2 q |
| Lucas Moises Navarro Christoff | Bradford School | 7 | 12.27 | 4 q |
| Diego Alfonso Ruiz Jara | Dunalastair - Peñalolén | 4 | 12.77 | 10 |
| Santiago Marin Morra | The Mackay School | 2 | 12.86 | 11 |
| Juan Agustín Barraza Simian | The Mackay School | 3 | 13.02 | 12 |
| Raimundo Anguita Chinchilla | Bradford School | 6 | 13.03 | 14 |
