| Serie 1 V.V. +0.0 |
| Antonio Pereira Vasquez | Saint George's College | 4 | 11.33 | 1 q |
| Baltazar Valenzuela Bruce | Saint George's College | 4 | 11.35 | 2 q |
| Matias Zañartu Valdes | Verbo Divino | 3 | 12.53 | 20 |
| Borja Smith Vergara | Monte Tabor | 8 | 12.65 | 26 |
| Cristopher Ruiz Fredes | Patricio Mekis - Maipú | 1 | 12.72 | 29 |
| Ignacio Olivares Gutierrez | SSCC Alameda | 6 | 12.96 | 35 |
| Lucas Diaz Hernandez | The Greenland School | 8 | 13.20 | 39 |
| Serie 2 V.V. +0.0 |
| Borja Valenzuela Bruce | Saint George's College | 5 | 11.89 | 8 q |
| Diego Sepulveda Marquez | San Ignacio El Bosque | 6 | 12.46 | 18 |
| Martin Ruiz De Gamboa Pereira | SSCC Alameda | 3 | 12.59 | 23 |
| Santiago Ruiz Tagle Brown | San Isidro | 7 | 12.76 | 30 |
| Cristian Prieto Noguera | Cordillera | 1 | | |
| Francisco Retamal Kiblisky | Instituto Hebreo | 2 | | |
| Juan Pablo Nordetti Llull | Trebulco School | 4 | | |
| Pedro Pablo Anatibia Reynaud | Saint Gabriel's School | 8 | | |
| Serie 3 V.V. +0.5 |
| Joaquin Alberto Daza Herrada | Liceo Bicentenario - Talagante | 4 | 11.41 | 3 q |
| Tomás Irarrázaval Varela | Cumbres | 2 | 11.55 | 5 q |
| Santiago Calvo De Bonnafos | Tabancura | 5 | 12.27 | 14 |
| Jorge Ruiz-tagle Edwards | Cordillera | 1 | 12.44 | 17 |
| Fermin Valenzuela Leppe | Tabancura | 3 | 12.55 | 21 |
| Francisco Caparros Fuentes | SSCC Manquehue | 7 | 12.60 | 24 |
| Martín Davis Catafau | San Benito | 8 | 12.78 | 31 |
| Jose Guarachi Rodriguez | San Ignacio El Bosque | 6 | DNS | |
| Serie 4 V.V. +0.4 |
| Pedro Ismael Reyes Parada | SSCC Alameda | 4 | 11.53 | 4 q |
| Santiago Hurtado Cetty | Cordillera | 1 | 11.67 | 6 q |
| Emil Klotz Bernstein | Verbo Divino | 3 | 12.81 | 32 |
| Pablo Vasquez Bulboa | Domingo Matte Mesías | 8 | 13.05 | 36 |
| Joaquin Llull Kerrigan | Padre Hurtado y Juanita de los Andes | 7 | 13.21 | 40 |
| Paul Little Soza | Cumbres | 2 | | |
| Sebastián Martínez Rivero | Alemán de Santiago | 5 | | |
| Cristian Soublette Tocornal | San José de Chicureo | 6 | | |
| Serie 5 V.V. +0.3 |
| Juan Miguel Ovalle Valdés | Verbo Divino | 4 | 11.92 | 9 |
| Matías González Romero | Alemán de Santiago | 5 | 12.15 | 12 |
| León Mandry Marty | Alemán de Santiago | 3 | 12.60 | 25 |
| Alonso Aillon Rojas | La Misión de Calera de Tango | 8 | 12.86 | 33 |
| Raimundo Lazo Rivera | SSCC Manquehue | 2 | | |
| Julian Castro Sobino | Saint Gaspar College | 6 | | |
| Maximiliano Arroyo Valdés | San Benito | 7 | | |
| Serie 6 V.V. +0.7 |
| Benjamín Valenzuela Etchepare | San Anselmo | 4 | 11.98 | 10 |
| Luis Santiago Mella Ibaceta | Internado Nacional Barros Arana | 5 | 12.32 | 16 |
| Santiago Rencoret Giaconi | Maitenes | 6 | 12.47 | 19 |
| Javier Ergas Castro | Instituto Hebreo | 8 | 13.07 | 37 |
| Juan Jose Muñoz Infante | SSCC Manquehue | 2 | | |
| Martín Valderrama Wiehandt | Everest | 3 | | |
| Vicente Velasco Fernándes | Monte Tabor | 7 | DNS | |
| Serie 7 V.V. -0.2 |
| Pablo Salamanca Lopez | Andree English School | 4 | 11.77 | 7 q |
| Nicolas Ortiz Ibañez | Padre Hurtado y Juanita de los Andes | 8 | 12.10 | 11 |
| Agustin Valdes Zegers | Tabancura | 5 | 12.17 | 13 |
| Martín Chavez Osses | San Anselmo | 3 | 12.57 | 22 |
| Ioav Testa Sklofsky | Instituto Hebreo | 2 | 12.71 | 28 |
| Gonzalo Fernandez Dominguez | Maitenes | 6 | 12.88 | 34 |
| Lucas Bakovic Briones | Padre Hurtado y Juanita de los Andes | 7 | | |
| Serie 8 V.V. +0.2 |
| Andrés Pino Ross | San Anselmo | 4 | 12.30 | 15 |
| Manuel José Mackenna Vial | Maitenes | 6 | 12.70 | 27 |
| Martín Undurraga Meyer | San Isidro | 2 | 13.19 | 38 |
| Benjamin Matias Aballay Palma | Polivalente Don Orione | 7 | 13.29 | 41 |
| Agustin Villarrubia Cardenas | Saint Gabriel's School | 8 | 14.10 | 42 |
| Javier Benjamin Ratto Escobar | Instituto Alonso de Ercilla | 3 | | |
| Alberto Silva Davis | Trebulco School | 5 | | |
