| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 2 | 66 | KING ZAC | EM | 49.66 | Q | |||
| 2 | 3 | 402 | BYRON CHRISTIAN | WM | 49.87 | Q | |||
| 3 | 6 | 33 | IRWIN CAMERON | EA | 50.29 | q | |||
| 4 | 5 | 319 | CLUTTERBUCK JOEL | SW | 50.54 | q | |||
| 5 | 1 | 127 | ARCHER JAKE | NE | 52.25 | 3Pnts | |||
| 6 | 4 | 166 | BROWNING JONATHAN | NI | 52.60 | 2Pnts |