Heats (Declared Winners) Boys 11/99 Yrs 400m Freestyle
11 Yrs Age Group
| Place | Name | AaD | Club | Time | FINA Pt | |
| 1. | David WHEADON | 11 | Portsmouth N | 4:54.26 | 443 | |
| 2. | James MILLAR | 11 | Portsmouth N | 4:56.04 | 435 | |
| 3. | Jordan BRETT | 11 | Thanet Swim | 4:57.72 | 428 | |
| 4. | Alexander WILMSHURST | 11 | Thanet Swim | 4:57.98 | 427 | |
| 5. | Harry BRADFORD | 11 | Thanet Swim | 5:03.84 | 402 | |
| 6. | Bradley O'CONNOR | 11 | Hillingdon | 5:10.12 | 378 | |
| 7. | Robert DOS SANTOS | 11 | Camden Swiss | 5:10.82 | 376 | |
| 8. | Noah FOLEY | 11 | Hillingdon | 5:11.56 | 373 | |
| 9. | Ryan SHANKAR | 11 | Kingston Roy | 5:13.16 | 367 | |
| 10. | Harry FOX | 11 | Killerwhales | 5:18.44 | 349 | |
12/13 Yrs Age Group
| Place | Name | AaD | Club | Time | FINA Pt | |
| 1. | Timothy ROBINSON | 13 | Wandsworth | 4:27.31 | 591 | |
| 2. | Louis PHILLIPS | 13 | Beckenham | 4:31.29 | 565 | |
| 3. | Julian CHAN QUEE LIN | 13 | Leander | 4:31.50 | 564 | |
| 4. | Thomas GREGSON | 13 | Portsmouth N | 4:40.57 | 511 | |
| 5. | William STANHOPE | 13 | Portsmouth N | 4:40.96 | 509 | |
| 6. | Adam MILNE | 12 | Basingstoke | 4:41.14 | 508 | |
| 7. | James WHEADON | 13 | Portsmouth N | 4:42.49 | 501 | |
| 8. | Tor WHEELER | 13 | Croydon Amph | 4:45.39 | 485 | |
| 9. | Jamie WOODMAN | 13 | Hillingdon | 4:47.28 | 476 | |
| 10. | Brandon CHOI | 13 | Portsmouth N | 4:48.30 | 471 | |
| 11. | Aaron LLOYD | 12 | Portsmouth N | 4:48.68 | 469 | |
| 12. | George PRUNTY | 12 | Hillingdon | 4:49.60 | 465 | |
| 13. | Leon BERCHIE | 13 | Hillingdon | 4:49.68 | 464 | |
| 14. | Harold PEARSON | 12 | Beckenham | 4:50.71 | 459 | |
| 15. | Casey HARTE | 13 | Herne Bay | 4:52.27 | 452 | |
| 16. | James CORRIGAN | 13 | Portsmouth N | 4:52.31 | 452 | |
| 17. | Fravash BILIMORIA | 13 | Hillingdon | 4:53.23 | 448 | |
| 18. | Frederick BIGGS | 13 | Sevenoaks | 4:54.71 | 441 | |
| 19. | Daniel EDMISTON | 12 | Teddington | 4:59.03 | 422 | |
| 20. | Jack KEELER | 13 | Portsmouth N | 4:59.71 | 419 | |
| 21. | Samuel IRVINE | 12 | Basingstoke | 4:59.85 | 419 | |
| 22. | Joe CLARK | 13 | Kingston Roy | 5:03.07 | 405 | |
| 23. | Jordan SMITH | 12 | Saxon Crown | 5:03.56 | 403 | |
| 24. | John MCGEE-COLWELL | 13 | Portsmouth N | 5:03.57 | 403 | |
| 25. | Charlie FOX | 12 | Killerwhales | 5:04.59 | 399 | |
| 26. | DOMINIC O'HEARN | 13 | Leander | 5:06.82 | 391 | |
| 27. | Brandon SAYERS | 12 | Kingston Roy | 5:09.99 | 379 | |
14/15 Yrs Age Group
| Place | Name | AaD | Club | Time | FINA Pt | |
| 1. | John SLATER | 14 | Basingstoke | 4:26.34 | 597 | |
| 2. | Adam PRUNTY | 14 | Hillingdon | 4:27.48 | 590 | |
| 3. | Patrick HAM | 14 | Sevenoaks | 4:30.40 | 571 | |
| 4. | James DEBRUNNER | 14 | Sutton Cheam | 4:33.19 | 553 | |
| 5. | Marlon GASPAROTTO | 14 | Beckenham | 4:35.35 | 541 | |
| 6. | James ROOME | 14 | Killerwhales | 4:37.60 | 528 | |
| 7. | John BRITTON | 14 | Wandsworth | 4:39.04 | 519 | |
| 8. | Liam SMALL | 14 | Portsmouth N | 4:45.17 | 487 | |
| 9. | Dan ALLPRESS | 14 | Kingston Roy | 4:53.72 | 445 | |
| 10. | Barnaby KEMPSTER | 15 | Basingstoke | 4:54.84 | 440 | |
| 11. | Jamie HOPPER | 14 | Herne Bay | 5:00.34 | 417 | |
| 12. | Tariq HAMZA | 14 | Black Lion | 5:02.30 | 408 | |
16/99 Yrs Age Group
| Place | Name | AaD | Club | Time | FINA Pt | |
| 1. | Michael GUNNING | 16 | Beckenham | 4:14.78 | 682 | |
