| Final | |||||
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 1 | S WILLIAMS-BROWN | 12 | Market Har | 42.08 |
| 2 | 2 | Ivy LOWE | 12 | Leicester Ne | 40.99 |
| 3 | 3 | Matilda BOTT | 12 | Hinckley | 40.16 |
| 4 | 4 | Ivy BROWN | 12 | Melton M'bry | 38.90 |
| 5 | 5 | India SAWYER | 12 | Coalville | 39.24 |
| 6 | 6 | Ava WEBB | 12 | Coalville | 40.19 |
| 7 | 7 | Juliet THAI | 12 | Coalville | 41.32 |
| 8 | 8 | Thea ALEXANDER | 12 | Hinckley | 42.65 |