| Serie 1 |
| Franco Guissepe Marchini Rudloff | Bradford School | 3 | 10.34 | 1 q |
| Jose Tomas Villarroel Massardo | Trebulco School | 5 | 10.69 | 2 q |
| Pablo Sepulveda Trucco | The Grange School | 6 | 11.03 | 7 q |
| Christian Meier Grandón | Saint Gabriel's School | 2 | 11.08 | 8 q |
| Emiliano Bustos Gomez | Craighouse School | 8 | 11.13 | 11 |
| Damian Arancibia Pimstein | The Grange School | 7 | 11.31 | 15 |
| Tomas Joaquin Galvez Jimenez | The Mackay School | 4 | 11.49 | 18 |
| Serie 2 |
| Andrés Teobaldo Larsen Apablaza | The Mackay School | 4 | 10.98 | 6 q |
| Sebastián Perez Donoso | Redland School | 6 | 11.30 | 14 |
| Leon Larrebourne Salinas | The Grange School | 8 | 11.61 | 20 |
| Martin Desmadryl Dionis | Redland School | 2 | 11.81 | 22 |
| Nicolas Correa Aruta | Redland School | 5 | 11.90 | 26 |
| Iñaki Amenabar Gatti | Dunalastair - Chicureo | 3 | | |
| Maximiliano Croxatto Karlezi | Dunalastair - Chicureo | 7 | | |
| Serie 3 |
| Pablo Cesar Ruíz Neira | The Wessex School - Concepción | 8 | 11.09 | 9 |
| Dante Corbetta - | Craighouse School | 4 | 11.27 | 12 |
| Felipe Ramirez Barroso | The Mayflower School | 3 | 11.83 | 23 |
| Santiago Briceño Castro | Saint Gabriel's School | 6 | 11.85 | 24 |
| Martín Fernandez Larenas | The Mayflower School | 5 | 12.02 | 27 |
| Augusto Aroca González | The Wessex School - Concepción | 2 | 12.43 | 29 |
| Guglielmo Tuli A | The Mayflower School | 7 | 12.45 | 30 |
| Serie 4 |
| Lucas Pedemonte Derderian | Trebulco School | 3 | 10.74 | 3 q |
| Emilio Retamal Guajardo | Trebulco School | 6 | 10.75 | 4 q |
| Kenny Wang Chen | Craighouse School | 5 | 11.27 | 12 |
| Borja Galaz Canepa | Santiago College | 2 | 11.60 | 19 |
| José Manuel Díaz Cavalerie | The Wessex School - Concepción | 7 | 11.79 | 21 |
| Sergio Alonso Retamal Barreto | Dunalastair - Peñalolén | 8 | 12.60 | 31 |
| Sebastian Andres Vera Soto | Dunalastair - Peñalolén | 4 | 12.84 | 32 |
| Serie 5 |
| Cristobal Sanchez Urcelay | Santiago College | 8 | 10.79 | 5 q |
| Domingo Leddy Campino | Bradford School | 2 | 11.10 | 10 |
| Julian Nicolás Vidal Herrera | Dunalastair - Peñalolén | 5 | 11.36 | 16 |
| Angelo Ignacio Cavallo Vidal | The Mackay School | 6 | 11.40 | 17 |
| Joaquin Flores Camposano | Santiago College | 7 | 11.86 | 25 |
| Iker Gaspar Gonzalez Vasquez | Saint Gabriel's School | 3 | 12.21 | 28 |
| Franco Ignacio Astrain Mira | Dunalastair - Chicureo | 4 | 13.62 | 33 |
