400 meter u23 Men E152, Heat:1 of 4 ; Official result
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 5 | 615 | DE JAGER, SHAUN | 46.29 | BOLA | u23 | 46.68 | Q | |
| 2 | 6 | 423 | MOIMANE, KOKETSO | 48.83 | ANWN | u23 | 48.07 | q | |
| 3 | 2 | 880 | VAN VUUREN, RHODWIN | 53.03 | CGA | u23 | 49.81 | ||
| 4 | 3 | 915 | RONAASEN, BJORN | 49.95 | EPA | u23 | 50.82 | ||
| 5 | 7 | 416 | KETSABENG, MICHAEL | 50.00 | ANWC | u23 | 52.77 | ||
| 6 | 4 | 898 | DE VILLIERS, DAVID | 51.86 | EPA | u23 | 53.35 | ||
| 1 | 956 | JOUBERT, BRENDAN | 48.88 | KZNA | u23 | DNS |