| B Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Katelyn Bergin | 16 | Stockport Mo | 30.34 |
| 1 | 2 | Zoe Cawsey | 18 | Atlantis | 30.28 |
| 2 | 3 | Honey Osrin | 14 | Plymouth Lea | 30.26 |
| 3 | 4 | Martha Duley | 18 | Colchester | 30.06 |
| 4 | 5 | Pia Murray | 15 | Ellesmere Co | 30.04 |
| 5 | 6 | Jessica Shaw | 18 | Birm'ham Uni | 30.04 |
| 6 | 7 | Meghan Maybanks | 17 | DunmowAtlant | 30.18 |
| 7 | 8 | C Fletcher-Stables | 15 | Northampton | 30.26 |
| 8 | 9 | Sophie Shaw | 15 | Mid Sussex | 30.33 |
| 9 | 10 | Heather Witcombe | 15 | Soundwell | 30.48 |