| 1 | Pieterjan Joubert | 53.77 | 1:04.14 | 1:14.36 53.77 DNF 1:01.15 56.90 |
| 2 | Sae-ouk Oh | 58.02 | 1:05.65 | 1:10.88 DNF 1:06.38 58.02 59.68 |
| 3 | Victor Ebubechukwu Tobechukwu Asiwe | 1:05.16 | 1:09.66 | 1:06.27 1:14.66 1:08.05 DNF 1:05.16 |
| 4 | Christo du Venage | 1:10.96 | 1:15.22 | 1:17.34 1:13.03 1:15.36 1:10.96 1:17.27 |
| 5 | Nkosinathi Radebe | 1:16.97 | 1:25.50 | 1:18.28 1:16.97 1:38.27 1:19.94 2:06.30 |
| 6 | Richard Hohls | 1:20.33 | 1:33.95 | DNF 1:20.33 1:39.06 1:31.53 1:31.27 |
| 7 | Donovan Hale | 1:35.53 | 1:47.72 | 1:45.93 1:58.31 1:35.53 1:38.91 2:01.36 |
| 8 | Brendan James Gray | 1:46.60 | 1:56.01 | 1:59.22 1:58.97 1:56.83 1:46.60 1:52.22 |
| 9 | Jaméan Groenewald | 1:42.65 | 2:06.24 | 2:28.77 1:57.08 DNF 1:42.65 1:52.86 |
| 10 | Zameer Dada | 1:59.71 | 2:16.29 | 2:16.53 2:25.65 2:50.66 2:06.69 1:59.71 |
| 11 | Henry Rochester | 2:37.96 | 2:57.03 | 3:04.15 2:44.30 2:37.96 3:02.63 DNF |
| 12 | Jordan Jacobson | 4:31.06 | 5:09.38 | 4:31.06 4:47.86 6:01.80 DNF 4:38.47 |
| 13 | Jasen Bredenkamp | 4:52.15 | 6:14.87 | 7:17.36 6:18.46 5:08.80 4:52.15 8:09.88 |