| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 128 | Kema Egbunike | Harrow A.C. | Sen | 49.75 | |||
| 2 | 8 | 38 | Tor Bennett-williams | Birchfield Harriers | U23 | 49.81 | |||
| 3 | 4 | 268 | Alex Beechey | Southampton A.C. | Sen | 50.51 | |||
| 4 | 7 | 138 | Bienvenu Agnimel | Havering A.C. | U23 | 50.62 | |||
| 5 | 3 | 83 | Calvin Smith | City Of Norwich A.C. | U17 | 51.37 | |||
| 6 | 6 | 94 | Elliot Bailey | Croydon Harriers | U23 | 52.57 | |||
| 7 | 5 | 308 | Victoria Ohuruogu | Unattached | Sen | 54.04 |
