| B Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Sophie BOWLER | 14 | St Felix Sch | 1:21.37 |
| 2 | 2 | Jana SPINNER | 13 | UEA Norwich | 1:19.83 |
| 3 | 3 | Rachel WELLINGS | 13 | Co Peterboro | 1:18.87 |
| 4 | 4 | Emily BIGGS | 14 | Co Cambridge | 1:17.50 |
| 5 | 5 | Natalie COOGANS | 16 | West Norfolk | 1:18.61 |
| 6 | 6 | Kate MCQUAID | 15 | Hatfield | 1:18.91 |
| 7 | 7 | Cira FLETCHER | 14 | Bishop Stort | 1:21.08 |
| 8 | 8 | Bethany MOTTRAM | 14 | West Suffolk | 1:21.54 |