| Serie 1 |
| Jose Hurtado Rivadeneira | Tabancura | 6 | 10.22 | 2 q |
| Gaspar Sariego Lobos | San Esteban Diácono | 2 | 10.36 | 6 q |
| Mateo Arancibia Estebanez | San Benito | 1 | 10.57 | 7 q |
| Mateo Ruiz Tagle Montalva | Tabancura | 4 | 10.64 | 10 |
| Pablo Guerrero Montiel | SSCC Manquehue | 5 | 10.86 | 15 |
| Lucas Donoso Soto | Saint George's College | 3 | 11.05 | 17 |
| Serie 2 |
| Emilio Infante Wienecke | Tabancura | 7 | 10.58 | |
| Ernesto Valdés Weber | San Benito | 2 | 10.68 | |
| Santiago Mena Aguirre | SSCC Manquehue | 5 | 10.81 | |
| Borja Errazu Coo | SSCC Manquehue | 6 | 11.27 | |
| Santiago Castillo Mingo | Saint George's College | 3 | 11.37 | |
| Diego Felipe Obregón Chacón | María Luisa Bombal | 1 | 12.93 | |
| Damien Poulangeon Lefranc | Lycée Antoine de Saint-Exupéry | 4 | 14.40 | |
| Julian Bedrossian Daiber | Lycée Antoine de Saint-Exupéry | 8 | | |
| Serie 3 |
| Pedro Covarrubias Hurtado | Tabancura | 7 | 10.29 | 3 q |
| Pedro Covarrubias Schalscha | SSCC Manquehue | 1 | 10.30 | 4 q |
| Mateo Ignacio Acuña Schiefelbein | Saint George's College | 4 | 10.75 | 12 |
| Léandre Legorgeu Tomaz | Lycée Antoine de Saint-Exupéry | 3 | 11.59 | 20 |
| Diego De Pablo Fanjul | Saint George's College | 6 | 12.19 | 21 |
| Tomás García Roberts | San Benito | 2 | DNS | |
| Leon Orellana Zamorano | María Luisa Bombal | 5 | DNS | |
| Serie 4 |
| Nicolas Hurtado Rivadeneira | Tabancura | 5 | 9.92 | 1 q |
| Matias De Castro Donoso | SSCC Manquehue | 4 | 10.31 | 5 q |
| Juan José Guevara Del Sante | San Benito | 7 | 10.58 | 8 q |
| Diego Simón Olivares Labarca | Saint George's College | 3 | 10.84 | 14 |
| Miguel Ángel Hernández Barrios | María Luisa Bombal | 6 | 10.95 | 16 |
| Simón González Rojas | Lycée Antoine de Saint-Exupéry | 1 | DNS | |
| Ignacio Alfonso Leyton Osorio | Marista - Diego Echeverría | 2 | DNS | |
