| 1 | Gabriel Dechichi Barbar | 53.53 | 55.53 | 53.53 55.31 1:01.53 55.18 56.09 |
| 2 | Alexandre Key Wakate Teruya | 54.77 | 57.87 | 58.97 1:00.46 55.33 59.30 54.77 |
| 3 | Rodrigo Kenji Asato Kobayashi | 50.36 | 59.05 | 59.56 1:00.46 57.28 50.36 1:00.31 |
| 4 | Pedro Santos Guimarães | 58.11 | 1:08.75 | DNF 58.11 1:05.19 1:10.43 1:10.63 |
| 5 | Hugo Leonardo de Oliveira Melo | 1:17.86 | 1:25.12 | 1:28.16 1:17.91 1:29.28 1:32.09 1:17.86 |
| 6 | Willian Fidêncio | 1:09.06 | 1:25.30 | 1:35.19 1:21.55 1:09.06 1:23.25 1:31.09 |
| 7 | Renan Mondini Cerpe | 1:20.43 | 1:38.50 | 1:34.61 1:20.43 1:38.06 1:42.84 1:49.86 |
| 8 | Rafael Werneck Cinoto | 1:32.75 | 1:41.79 | 1:51.94 1:41.03 1:35.80 1:48.53 1:32.75 |
| 9 | Gabriel Pitali de Carvalho | 1:29.58 | 1:51.42 | 1:47.03 1:41.46 1:29.58 2:05.78 2:35.42 |
| 10 | Rodrigo Ybarra de Oliveira Ribeiro | 1:44.53 | 2:03.06 | 1:53.27 1:44.53 2:11.72 2:04.19 2:47.19 |
| 11 | Ronan Felipe Jorge | 1:36.96 | 2:22.04 | 1:36.96 2:33.03 1:58.65 2:34.44 3:18.78 |
| 12 | Gustavo Maysonnave Franck | 2:02.83 | — | 2:02.83 2:11.25 — — — |
| 13 | Alex Mondini Cerpe | 2:13.56 | — | 2:13.56 3:13.94 — — — |
| 14 | Bruno Joarlette Coló | 2:29.13 | — | DNF 2:29.13 — — — |
| 15 | Felipe Keller Ariza | 2:32.44 | — | 2:32.44 2:54.98 — — — |
| 16 | Roberto Alegro | 2:39.71 | — | 2:39.71 2:50.46 — — — |
| 17 | Conrad Alberto Michelucci | 2:48.96 | — | 3:39.44 2:48.96 — — — |
| 18 | Gilberto Caracciolo Morelli | 2:49.83 | — | 2:49.83 2:58.11 — — — |
| 19 | Kyle Koughan | 3:02.21 | — | 4:59.78 3:02.21 — — — |
| 20 | William Backhaus Lopes Moura | 3:31.46 | — | 3:35.93 3:31.46 — — — |