| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4 | 137 | Aston Lockwood | Lewes AC | SEN | 55.15 | |||
| 2 | 6 | 135 | Milly Dickinson | Brighton Phoenix | U20 | 1:01.22 | |||
| 3 | 3 | 105 | Chloe Kornevall | Lewes AC | U20 | 1:02.07 | |||
| 4 | 2 | 103 | Rose Chaplin | Eastbourne Rovers AC | U20 | 1:03.12 | |||
| 5 | 138 | Caleb Purdy | Brighton & Hove AC | SEN | DNS |
