| 1 | Caio Hideaki Sato | 38.60 | 44.84 | 45.19 38.60 45.33 49.25 43.99 |
| 2 | Lucas Ichiro Yunomae | 53.14 | 56.22 | 56.87 57.19 53.14 54.60 58.02 |
| 3 | Pedro Paulo Lima Sasaki | 53.65 | 1:00.24 | 1:04.53 1:03.06 57.88 53.65 59.79 |
| 4 | Tiago Akihiro Fujita | 1:00.72 | 1:02.84 | 1:01.80 1:05.23 1:09.79 1:00.72 1:01.48 |
| 5 | Henrique Luiz Souza de Oliveira | 59.78 | 1:09.46 | 1:11.06 1:13.64 1:09.43 1:07.89 59.78 |
| 6 | Rafael Carreiro Campos | 1:07.53 | 1:10.16 | 1:20.20 1:09.95 1:09.28 1:11.26 1:07.53 |
| 7 | Beatriz Hernandes Bernardes | 1:06.62 | 1:14.08 | 1:12.37 1:07.49 1:06.62 1:22.37 1:28.93 |
| 8 | Isabela da Ponte Nacif | 1:02.88 | 1:16.50 | 1:16.50 1:24.46 1:21.32 1:11.67 1:02.88 |
| 9 | Ana Beatriz M. Tannenbaum | 1:09.97 | 1:22.45 | 1:09.97 1:25.91 1:16.11 1:42.33 1:25.33 |
| 10 | Pedro Henrique Maciel Ceccopieri Belo (陈昊然) | 1:18.13 | 1:33.59 | 1:34.02 1:33.72 1:34.45 1:33.04 1:18.13 |
| 11 | Henrique Pereira Souza Lima | 1:33.15 | 1:38.72 | 1:41.21 1:37.37 1:47.70 1:33.15 1:37.57 |
| 12 | Andrew Surine | 1:35.36 | 1:45.98 | 1:35.36 1:51.08 1:51.39 1:53.90 1:35.48 |
| 13 | Kauã S. Andrade | 1:33.10 | 1:50.08 | 3:04.84 1:33.10 1:58.02 1:35.57 1:56.64 |
| 14 | Gabriel Vasconcellos Zavrisko dos Santos | 1:41.43 | 1:50.97 | 1:50.13 2:04.60 1:41.43 1:52.13 1:50.65 |
| 15 | Fabio Bini Graciose | 1:51.15 | 1:59.26 | 2:01.96 1:51.15 2:52.82 1:59.33 1:56.50 |
| 16 | Henrique Votisch | 2:06.88 | 2:11.46 | 2:07.61 2:47.99 2:14.06 2:12.70 2:06.88 |
| 17 | Marco Termini Boccardo | 1:44.35 | 2:24.27 | 2:26.16 2:10.29 1:44.35 2:36.36 2:41.17 |
| 18 | Arthur Araújo Morin | 2:25.04 | 2:36.12 | 2:29.06 2:30.13 DNF 2:49.16 2:25.04 |
| 19 | António Albino | 2:20.24 | 2:37.62 | 2:20.24 2:39.20 2:25.26 2:48.40 DNF |
| 20 | Leonardo Carvalho Feitosa | 3:07.44 | 3:46.51 | 3:07.44 4:16.62 4:07.92 3:57.93 3:13.68 |