| 1 | Ciarán Beahan | 1:40.40 | 1:44.72 | 1:47.46 1:40.40 1:46.31 — — |
| 2 | Evan Liu | 1:49.01 | 2:00.10 | 1:53.82 2:17.48 1:49.01 — — |
| 3 | Callum Hales-Jepp | 2:25.46 | 2:29.25 | 2:36.01 2:25.46 2:26.27 — — |
| 4 | John O'Connell | 2:46.81 | 2:58.86 | 2:53.48 3:16.29 2:46.81 — — |
| 5 | Ting Sheng Bao Yang | 2:48.82 | 3:02.60 | 2:48.82 3:02.26 3:16.71 — — |
| 6 | Nevins Chan Pak Hoong (陈百鸿) | 2:49.83 | 3:06.21 | 3:05.26 3:23.55 2:49.83 — — |
| 7 | Finn Ickler | 3:13.08 | 3:25.95 | 3:18.50 3:46.26 3:13.08 — — |
| 8 | Gerard McAteer | 3:17.64 | 3:31.50 | 3:38.92 3:17.64 3:37.94 — — |
| 9 | Ben Keogh | 3:55.93 | 4:16.29 | 3:55.93 4:27.59 4:25.36 — — |
| 10 | Andy Lee Mitchell | 4:11.90 | — | 4:11.90 — — — — |
| 11 | Pau Vela García | 4:21.35 | — | 4:21.35 — — — — |
| 12 | Colm Fitz | 4:36.18 | — | 4:36.18 — — — — |
| 13 | Katie Moughan | 4:45.91 | — | 4:45.91 — — — — |
| 14 | Conor Sheridan | 5:15.73 | — | 5:15.73 — — — — |
| 15 | Alex Cullen | 8:54.73 | — | 8:54.73 — — — — |