| Serie 1 |
| Diego Lozano Merino | Saint George's College | 4 | 11.37 | 6 q |
| Agustin Schiaroli Arnedillo | Epullay Montessori | 3 | 13.16 | 19 |
| Baltazar Tagle Thomas | Monte Tabor | 7 | 14.02 | 29 |
| Vicente Ignacio Martinez Robledo | Calasanz | 6 | 14.27 | 30 |
| Tomás Ignacio Ortega Salgado | Instituto Alonso de Ercilla | 2 | 18.23 | 34 |
| Lucas Munita Kosameh | Cumbres | 1 | DNS | |
| Tomas Miller Wenz | Everest | 5 | DNS | |
| Santiago Goycoolea Miyakawa | Padre Hurtado | 8 | DNS | |
| Serie 2 |
| Raymundo Cherit Salvo | Saint George's College | 8 | 10.97 | 3 q |
| Milo Pavic Garea | Sankt Thomas Morus | 2 | 13.04 | 17 |
| Sebastian Atal Albers | San Isidro | 1 | 13.09 | 18 |
| Gabriel Alaluf Shiff | Instituto Hebreo | 4 | 14.30 | 31 |
| Matias Ignacio Orellana Montero | Verbo Divino - Chicureo | 3 | 18.03 | 33 |
| Pedro Neumann Rivera | The Newland School | 5 | DNS | |
| Simón Pedro Edwards Castillo | Calasanz | 6 | DNS | |
| Pedro Flaño Mozó | Padre Hurtado | 7 | DNS | |
| Serie 3 |
| Iñigo De Urruticoechea Theiler | Tabancura | 3 | 10.52 | 1 q |
| Gabriel Magrot Santa MarÃa | SSCC Manquehue | 8 | 11.99 | 10 |
| Sebastian Bertelsen Riutort | Verbo Divino | 6 | 12.05 | 11 |
| Agustin Pratt Lara | Cordillera | 2 | 12.42 | 13 |
| José Domingo Güell Contador | San Francisco de AsÃs | 4 | 12.80 | 14 |
| Emiliano Antonio Amaro Beltrán | Montessori de Talca | 7 | 17.15 | 32 |
| Jose Pedro Lagos Salles | San Isidro | 1 | DNS | |
| Santiago Emilio De La Barra Caviedes | Verbo Divino - Chicureo | 5 | DNS | |
| Serie 4 |
| Vicente Vetterlein Hayler | Verbo Divino | 7 | 10.77 | 2 q |
| Santiago Martinez Echeverria | Tabancura | 8 | 11.68 | 7 q |
| Clemente Zambra Pacheco | SSCC Manquehue | 5 | 12.34 | 12 |
| Nemesio Vicuña Vial | San Francisco de AsÃs | 6 | 13.03 | 16 |
| Antonio Florenzano Binda | Cordillera | 1 | 13.65 | 26 |
| Benjamin Ignacio Ulloa Ortiz | Verbo Divino - Chicureo | 2 | 13.87 | 27 |
| Bastian Viveros Carrillo | Internacional Alba | 3 | DNS | |
| Manuel Tagle Dominguez | San Isidro | 4 | DNS | |
| Serie 5 |
| Tomas Castillo Erlwein | Tabancura | 6 | 11.33 | 4 q |
| Pedro Recordon Rojas | Verbo Divino | 7 | 11.34 | 5 q |
| Santiago Izquierdo Valdés | Cumbres | 3 | 11.75 | 8 q |
| Cristobal Amenabar Mardones | Cordillera | 4 | 11.79 | 9 |
| Gonzalo Larrain Izquierdo | Huinganal | 1 | 13.34 | 21 |
| Ignacio Calvo Greene | Monte Tabor | 8 | 13.61 | 25 |
| Salvador Covarrubias Undurraga | San Francisco de AsÃs | 5 | 14.01 | 28 |
| Crescente Risopatrón Otaegui | San Anselmo | 2 | DNS | |
| Serie 6 |
| Tomás Silva Allende | Cumbres | 5 | 12.82 | 15 |
| Jorge Mateo Alvarado Hernandez | Instituto Alonso de Ercilla | 1 | 13.30 | 20 |
| Santiago Ortiz Moreno | Calasanz | 3 | 13.37 (13.3700) | 22 |
| Felipe De Mussy Yarur | Monte Tabor | 7 | 13.37 (13.3700) | 23 |
| Benajamin Ruiz Tagle Aubert | Huinganal | 6 | 13.50 | 24 |
| Sebastian Jara Polanco | SSCC Providencia | 2 | DNS | |
| José Alejandro Alliende Hurtado | Everest | 4 | DNS | |
