| B Final | ||||||
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 1 | Lauren HALL | 14 | Co Cambridge | 31.31 | |
| 2 | 2 | Ellie FOGG | 15 | Hatfield | 31.28 | |
| 3 | 3 | Jessica-Jane APPLEGATE | 17 | S14 | UEA Norwich | 31.16 |
| 4 | 4 | Kate LITTLE | 14 | Co Cambridge | 31.01 | |
| 5 | 5 | Abby SMITH | 17 | Harpenden | 31.06 | |
| 6 | 6 | Chloe ARNOLD | 15 | Hatfield | 31.20 | |
| 7 | 7 | Bethany MOTTRAM | 14 | West Suffolk | 31.29 | |
| 8 | 8 | Heather PFEIFFER | 16 | Co Peterboro | 31.34 | |