Heats (Declared Winners) Girls 10/99 Yrs 400m IM
10/11 Yrs Age Group
| Place | Name | AaD | Club | Time | FINA Pt | |
| 1. | Kelly SMALL | 11 | Portsmouth N | 5:43.20 | 519 | |
| 2. | Lauren O'CONNOR | 11 | Hillingdon | 5:54.40 | 471 | |
| 3. | Megan MOLONEY | 11 | Hillingdon | 5:59.98 | 450 | |
| Ellie MITCHELL | 11 | Runnymede | DNC | | |
12/13 Yrs Age Group
| Place | Name | AaD | Club | Time | FINA Pt | |
| 1. | Brock WHISTON | 13 | Romford Town | 5:24.22 | 616 | |
| 2. | Eleanor PIRRIE | 13 | Runnymede | 5:25.17 | 610 | |
| 3. | Sarah HARRINGTON | 13 | Hillingdon | 5:31.62 | 575 | |
| 4. | Ellena HOAR | 12 | Portsmouth N | 5:36.90 | 549 | |
| 5. | Georgia CHURCHILL-WRIG | 12 | Portsmouth N | 5:37.29 | 547 | |
| 6. | Hannah PARKER | 13 | Basingstoke | 5:38.64 | 540 | |
| 7. | Christy CHUI | 13 | Basingstoke | 5:39.52 | 536 | |
| 8. | Molly SPARKS | 13 | Killerwhales | 5:40.16 | 533 | |
| 9. | Nicole DOLLERY | 13 | Portsmouth N | 5:40.33 | 532 | |
| 10. | Hannah FREDERICKS | 12 | Portsmouth N | 5:44.49 | 513 | |
| 11. | Keone CROCKWELL | 13 | Basingstoke | 5:46.70 | 504 | |
| 12. | Shakira FLEMING | 13 | Kingston Roy | 5:48.62 | 495 | |
| 13. | Michelle MITCHELL | 12 | Hatfield | 5:49.98 | 489 | |
| 14. | Bethany LINCOLN | 13 | Portsmouth N | 5:54.29 | 472 | |
| 15. | Yasmin FLEMING | 12 | Kingston Roy | 6:01.81 | 443 | |
| 16. | Hannah GOLTON | 13 | Portsmouth N | 6:02.37 | 441 | |
| 17. | Amy MOSELEY | 12 | Hillingdon | 6:07.73 | 422 | |
| 18. | Eloise LYONS | 12 | Thurrock | 6:08.08 | 421 | |
| 19. | Georgia HARRIS | 12 | Orpington OJ | 6:08.48 | 419 | |
| 20. | Marie DEANE | 12 | Beckenham | 6:14.44 | 400 | |
| 21. | Mollie MERRITT | 12 | Thurrock | 6:15.93 | 395 | |
| 22. | Grace OCKWELL | 12 | Beckenham | 6:16.96 | 392 | |
14/15 Yrs Age Group
| Place | Name | AaD | Club | Time | FINA Pt | |
| 1. | Rebecca WALTON | 14 | Beckenham | 5:17.21 | 657 | |
| 2. | Lauren WALTON | 14 | Beckenham | 5:22.78 | 624 | |
| 3. | Charlotte NORMAN | 14 | Hillingdon | 5:37.35 | 547 | |
| 4. | Kerry RANGER | 15 | Cheshunt | 5:44.04 | 515 | |
| 5. | Sasha SUTCLIFFE | 14 | Wandsworth | 5:51.56 | 483 | |
| Sophie GOODALL | 15 | Basingstoke | DNC | | |
16/99 Yrs Age Group
| Place | Name | AaD | Club | Time | FINA Pt | |
| 1. | Grace ARCHER | 18 | Wandsworth
| 4:57.53 | 883 | |
| 2. | Chloe DAVIS | 16 | Runnymede | 5:13.39 | 682 | |
