| Serie 1 |
| Santiago Vildosola Benavente | Tabancura | 5 | 10.38 (10.377) | 3 q |
| Santiago Eyzaguirre Ercilla | Tabancura | 3 | 10.57 | 8 q |
| Cristián Ruz Encina | Saint George's College | 1 | 10.93 | 19 |
| José Velasco González | Saint George's College | 2 | 10.96 | 20 |
| Nikolaus Reischmann Reischmann | Alemán de Santiago | 6 | 10.97 | 21 |
| Vicente Vergara Correa | Verbo Divino | 4 | | |
| Serie 2 |
| Ignacio Charme Soto | San Francisco Javier de Huechuraba | 4 | 9.87 | 1 q |
| Vicente Parada Muñoz | Cordillera | 5 | 10.38 (10.379) | 4 q |
| Mauricio Gelfenstein Biehl | San Anselmo | 3 | 10.69 | 13 |
| Lucas Tyler Cabrera | Padre Hurtado | 1 | 10.84 | 15 |
| Juan Ignacio González Romero | Alemán de Santiago | 2 | 10.91 | 18 |
| Pablo Martin Ureta | Monte Tabor | 6 | 11.45 | 26 |
| Serie 3 |
| Raimundo Velasco Barañao | Verbo Divino | 4 | 10.07 | 2 q |
| Santiago Ignacio Diaz Folsch | San Ignacio El Bosque | 5 | 10.52 | 7 q |
| Ricardo Anwandter Fuenzalida | San Anselmo | 2 | 10.62 | 11 q |
| Clemente Jose Varas Fuenzalida | San Anselmo | 3 | 10.90 | 17 |
| CristĂłbal Palma Soto | San Francisco Javier de Huechuraba | 6 | 12.91 | 32 |
| Adam Meyer Hernandez | Instituto Hebreo | 1 | 13.30 | 34 |
| Serie 4 |
| Vicente Georgi Vidal | SSCC Manquehue | 5 | 10.58 (10.578) | 9 q |
| LeĂłn RodrĂguez Edwards | San Benito | 3 | 10.98 | 22 |
| Vicente Russi Urrutia | San Francisco Javier de Huechuraba | 2 | 11.46 | 27 |
| Eleodoro Augusto RodrĂguez Chadwick | Everest | 1 | 11.99 | 29 |
| Máximo Swett Matte | Everest | 4 | | |
| Joaquin Gonzalez Marfin | San Ignacio El Bosque | 6 | | |
| Serie 5 |
| Matteo Braccesi Cordova | San Ignacio El Bosque | 4 | 10.49 | 6 q |
| Pablo Giglio Bontempi | Padre Hurtado | 1 | 10.86 | 16 |
| Nicolas Langlois Mackenna | Cordillera | 6 | 11.26 | 25 |
| Cristobal Labbe Cristi | Monte Tabor | 3 | 11.67 | 28 |
| Lucas Krauss Meyer | Instituto Hebreo | 2 | 13.05 | 33 |
| Javier Alonso AragĂłn Godoy | Verbo Divino | 5 | | |
| Serie 6 |
| Juan Agustin Zañartu Binimelis | Padre Hurtado | 5 | 10.58 (10.577) | 10 q |
| Ethan Jana A | The Grange School | 4 | 10.67 | 12 q |
| Raimundo Vicari Torres | Saint George's College | 6 | 11.00 | 23 |
| Benjamin Eyzaguirre Elmaleh | Instituto Hebreo | 1 | 12.85 | 31 |
| Domingo Cervilla SolĂs | San Benito | 2 | | |
| Vicente Baltra Escobar | San Benito | 3 | | |
| Serie 7 |
| Arturo Le Blanc Alamos | Tabancura | 4 | 10.47 | 5 q |
| Santiago Vildosola Velasco | SSCC Manquehue | 5 | 10.71 | 14 |
| Clemente Hurtado De Mendoza Undurraga | Cordillera | 2 | 11.04 | 24 |
| Benjamin Bartel Zuñiga | Alemán de Santiago | 6 | 12.38 | 30 |
| Mateo Arteaga Bertholet | Everest | 3 | | |
