| Serie 1 |
| Juan Pablo Nordetti Llull | Trebulco School | 5 | 11.38 | 1 q |
| Luis Enrique Ibarra Lobos | Liceo Bicentenario - Talagante | 7 | 11.99 | 2 q |
| Daniel Fernando Garcia Oyuela | The Mayflower School | 4 | 13.18 | 9 |
| Raimundo Navarro Silva | La Misión de Calera de Tango | 3 | | |
| Gabriel Antonio Aguirre Espinoza | San Luis Gonzaga II | 6 | | |
| Cristobal Alejandro Cornejo Vallejos | The Angel's School | 8 | | |
| Serie 2 |
| Julián Adolfo Riveros Tzanis | Los Ceibos | 4 | 12.22 | 4 q |
| Kevin Andrés Torres Gómez | Forjadores - Peñaflor | 7 | 12.38 | 5 q |
| Miguel Garrido Urzua | Trebulco School | 3 | 12.56 | 7 q |
| Andrés Cordova Llanos | Andrée English School | 5 | 12.76 | 8 q |
| Agustín Duich Señoret | La Misión de Calera de Tango | 6 | | |
| Lucas Arano Diaz | The Mayflower School | 8 | | |
| Serie 3 |
| Andrés Molina Serrano | Trebulco School | 4 | 12.08 | 3 q |
| Vicente Andrés Antonucci Villaseca | Andrée English School | 5 | 12.50 | 6 q |
| Bernado Lima Leiva | Los Ceibos | 3 | 13.77 | 10 |
| Cristóbal Maximiliano Osorio Tamayo | Integral Arturo Prat | 8 | 14.04 | 11 |
| Alonso Aillon Rojas | La Misión de Calera de Tango | 6 | | |
| Basthian Mauricio Rojas Valdés | San Luis Gonzaga II | 7 | | |
