| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | 62 | Samuel Reardon | Blackheath and Bromley Harriers A.C. | U17 | 48.87 | |||
| 2 | 4 | 233 | Will Farndale | The HAWCS | U20 | 50.41 | |||
| 3 | 5 | 124 | Darcy Sullivan | Chelmsford A.C. | U17 | 50.57 | |||
| 4 | 2 | 208 | Drew Burridge | Reigate Priory A.C. | U20 | 53.29 |
