Final Womens 15 Yrs/Under 400m IM
| Place | Name | AaD | Club | Time | GB Pts | | 50 | 100 | 150 | 200 |
| | | | | | | 250 | 300 | 350 | 400 |
| 1. | Ceri UNWIN | 14 | Hatfield | 5:00.39 | 814 | | 32.60 | 36.52 | 39.85 | 38.71 |
| | | | | | | 43.06 | 43.00 | 34.71 | 31.94 |
| 2. | Hannah JOHN | 15 | Kings Lynn | 5:09.56 | 754 | | 32.10 | 36.54 | 41.17 | 40.65 |
| | | | | | | 44.11 | 44.98 | 35.54 | 34.47 |
| 3. | Angelina LIM | 14 | Co Peterboro | 5:12.06 | 738 | | 34.10 | 39.05 | 41.71 | 41.13 |
| | | | | | | 43.78 | 44.43 | 34.24 | 33.62 |
| 4. | Kaz MELVIN | 15 | Harlow Pen | 5:12.91 | 733 | | 35.63 | 40.80 | 40.22 | 39.02 |
| | | | | | | 44.41 | 43.11 | 35.83 | 33.89 |
| 5. | Hannah RAINE | 15 | Mid Beds | 5:18.57 | 699 | | 33.64 | 38.54 | 41.43 | 41.09 |
| | | | | | | 45.36 | 46.14 | 36.71 | 35.66 |
| 6. | Chloe PELLICAN | 14 | UEA Norwich | 5:20.35 | 689 | | 34.60 | 39.86 | 42.39 | 40.28 |
| | | | | | | 44.62 | 44.62 | 38.19 | 35.79 |
| 7. | Catherine HICKS | 14 | St Felix Sch | 5:28.20 | 645 | | 35.32 | 39.39 | 42.69 | 41.73 |
| | | | | | | 47.66 | 48.44 | 37.19 | 35.78 |
| 8. | Courtenay JACKSON | 15 | St Felix Sch | 5:34.20 | 614 | | 35.27 | 42.07 | 43.91 | 43.22 |
| | | | | | | 45.95 | 47.41 | 39.27 | 37.10 |