| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | 3 | William Butterworth | Bexley A.C. | U20 | 53.74 | |||
| 2 | 6 | 215 | Sebastiano Corbo | Shaftesbury Barnet Harriers | U20 | 56.74 | |||
| 3 | 5 | 239 | Rebekah O'Brien | Tonbridge A.C. | U20 | 58.09 | |||
| 4 | 3 | 84 | Hannah Roberts | Bracknell A.C. | U20 | 59.01 | |||
| 5 | 2 | 10 | Yasmin Austridge | Blackheath and Bromley Harriers A.C. | U23 | 1:00.05 | |||
| 6 | 7 | 192 | Lucy Hope | Medway and Maidstone A.C. | U23 | 1:00.49 |
