| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 6 | 358 | Thomas Niner | Brighton & Hove AC | SEN | 51.29 | |||
| 2 | 5 | 257 | Theo Adesina | Thurrock Harriers | U20 | 52.11 | |||
| 3 | 2 | 287 | Dawood Chohan | Harrow AC | U17 | 52.40 | |||
| 4 | 4 | 379 | Jami Schlueter | Shaftesbury Barnet Harriers | U20 | 53.08 | |||
| 5 | 3 | 300 | Adam Dray | Lewes AC | U20 | 53.31 |
