| 1 | Deng Zhengping | 46.32 | 50.33 | 51.93 46.93 59.45 52.13 46.32 |
| 2 | Tristan Chua Yong | 48.42 | 50.94 | 49.61 53.97 48.42 57.56 49.25 |
| 3 | Anyu Zhang (张安宇) | 48.97 | 51.70 | 48.97 48.98 54.66 53.45 52.68 |
| 4 | Ng Jia Quan (黄佳铨) | 51.72 | 54.56 | 55.38 55.40 52.90 51.72 58.34 |
| 5 | Wong Chong Wen (黄崇文) | 52.83 | 57.76 | 1:05.86 53.97 53.45 1:06.93 52.83 |
| 6 | Koh Zi Yi | 53.48 | 57.90 | 1:06.07 1:00.93 53.48 58.30 54.47 |
| 7 | Dylan Seah Tze Siang (谢智翔) | 55.44 | 58.11 | 56.51 1:01.00 1:01.12 56.82 55.44 |
| 8 | Ng Yong Teng | 54.01 | 58.99 | 1:04.50 57.14 DNF 54.01 55.32 |
| 9 | Koh Zi Qian | 55.70 | 1:00.00 | 58.27 1:04.85 1:07.37 55.70 56.87 |
| 10 | Lim Chun Yik (林峻毅) | 55.81 | 1:01.62 | 1:02.83 1:06.50 57.52 1:04.52 55.81 |
| 11 | Li Chengyu | 1:03.50 | 1:07.51 | 1:07.77 1:13.30 1:05.58 1:09.18 1:03.50 |
| 12 | Peh Zander | 59.62 | 1:08.13 | 1:04.15 1:11.44 DNF 59.62 1:08.80 |
| 13 | Aidan Loh Kai Ye | 1:09.33 | 1:14.55 | 1:16.88 1:16.81 1:15.12 1:11.71 1:09.33 |
| 14 | Reuel Franz Ramirez Magracia (刘埃尔) | 1:11.25 | 1:17.18 | 1:26.69 1:11.25 1:14.44 1:15.43 1:21.66 |
| 15 | Chin Yu An | 1:07.64 | 1:22.36 | 1:29.78 1:18.37 1:07.64 1:21.79 1:26.93 |
| 16 | Troy Tan Hong Kai | 1:10.19 | 1:23.14 | 1:26.52 1:10.19 1:40.07 1:23.86 1:19.05 |
| 17 | Remi Siew Pei Ting | 1:19.44 | 1:28.55 | 1:22.86 1:34.26 1:19.44 1:32.09 1:30.70 |
| 18 | Andrew Tan Jing Bang | 1:22.81 | 1:28.82 | 1:26.36 1:39.02 1:27.56 1:32.55 1:22.81 |
| 19 | Hector Kian | 1:31.02 | 1:36.95 | 1:32.15 1:35.40 1:43.53 1:31.02 1:43.31 |
| 20 | Advay Hari | 1:44.31 | — | 1:44.31 2:09.38 — — — |
| 21 | Isaac Shi En Lee | 1:54.05 | — | 1:54.05 2:15.78 — — — |
| 22 | Edward Lim | 2:09.27 | — | 2:47.00 2:09.27 — — — |
| 23 | Matthew Powell | 2:48.57 | — | 2:48.57 2:49.07 — — — |
| 24 | Ryan Teo Yi Jie | 2:49.26 | — | 2:49.26 DNF — — — |
| 25 | Ramanujan Srinivasan | 3:15.54 | — | 3:27.54 3:15.54 — — — |
| 26 | Glen Goh Wee Zhuan (吴洧全) | 3:32.36 | — | 4:20.03 3:32.36 — — — |
| 27 | Chanakya Srinivasan | DNF | — | DNF DNS — — — |