| 1 | Enzo Mattos | 3:13.29 | 3:22.70 | 3:21.71 3:13.29 3:33.10 — — |
| 2 | Lucas Ichiro Yunomae | 3:24.67 | 3:38.30 | 3:24.67 3:33.61 3:56.61 — — |
| 3 | Gabriel Bergue | 3:28.50 | 3:44.01 | 4:00.07 3:43.45 3:28.50 — — |
| 4 | Vicenzo Guerino Cecchini | 3:53.47 | 4:03.49 | 3:53.47 4:04.38 4:12.62 — — |
| 5 | João Guilherme Barejan Maiale | 4:08.39 | 4:23.16 | 4:39.94 4:08.39 4:21.16 — — |
| 6 | Daniel Lehwing | 4:10.21 | 4:24.16 | 4:39.42 4:22.85 4:10.21 — — |
| 7 | Giovane Rubin Fioravanti | 4:56.38 | 5:36.89 | 6:05.59 4:56.38 5:48.71 — — |
| 8 | Allyson Dias de Lima | 6:27.15 | 6:53.24 | 6:44.95 6:27.15 7:27.63 — — |
| 9 | Gabriel Valenciano Américo | 6:27.12 | 7:19.34 | 7:52.16 7:38.74 6:27.12 — — |
| 10 | Gabriel Lincon Souza | 6:50.67 | 7:23.83 | 6:57.45 6:50.67 8:23.37 — — |
| 11 | Fabio Bini Graciose | 7:19.05 | 7:32.34 | 7:19.05 7:48.82 7:29.15 — — |
| 12 | Murillo Gomes Otero | 7:40.19 | 8:03.70 | 7:59.78 8:31.14 7:40.19 — — |
| 13 | Luiz Fellipe Oliuza Leal Silva | 8:01.57 | 8:13.87 | 8:06.00 8:01.57 8:34.04 — — |
| 14 | Gabriel Pinheiro | 8:35.83 | 9:21.08 | 9:50.32 9:37.09 8:35.83 — — |
| 15 | Felipe Cardim | 9:49.58 | 10:09.00 | 9:49.58 10:11.00 10:26.00 — — |
| 16 | Iuri Grangeiro Carvalho | 7:36.01 | DNF | 10:43.00 7:36.01 DNF — — |
| 17 | Beni Issler | 12:11.00 | DNF | 12:11.00 DNF DNS — — |
| 18 | Renan da Cunha Santos | 15:18.00 | — | 15:18.00 — — — — |
| 19 | Gilberto Caracciolo Morelli | DNF | — | DNF — — — — |