EVENT 217 Mens 400m Freestyle - Heats
Not Competing : 6,15,22,25,28,34,37
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 3 | 1 | Joshua WELLS | 19 | S14 | UEA Norwich | 5:13.29 |
| 4 | 3 | Jaxon SIMMONS | 16 | S13 | Co Peterboro | 4:31.20 |
| 5 | 2 | Jordan CATCHPOLE | 17 | S14 | UEA Norwich | 4:31.67 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 2 | 5 | James CHENNELLS | 15 | | Berkhamsted | 4:27.68 |
| 3 | 8 | Michael RIPPER | 15 | | Harpenden | 4:24.52 |
| 4 | 10 | Harvey NORMAN | 15 | | Co Peterboro | 4:24.33 |
| 5 | 9 | Jack RYAN | 16 | | Mid Beds | 4:24.45 |
| 6 | 7 | Ryan MOGFORD | 16 | | Chelmsford | 4:24.52 |
| 7 | 4 | Ralph MUNCER | 15 | | Team Luton | 4:28.80 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 12 | Harrison LEES | 15 | | Watford SC | 4:23.78 |
| 2 | 14 | James MCFARLAND | 15 | | Mid Beds | 4:22.10 |
| 3 | 17 | Harry WHITEMAN | 16 | | Co Peterboro | 4:17.83 |
| 4 | 19 | Max WILSON | 16 | | Modernians | 4:16.00 |
| 5 | 18 | Jamie MCCAFFRAY | 15 | | Modernians | 4:17.30 |
| 6 | 16 | James BAYLEY | 16 | | Basildon Ph | 4:18.14 |
| 7 | 13 | Max JELFS | 15 | | Hemel Hemp | 4:23.67 |
| 8 | 11 | Cole JAMES | 15 | | Hatfield | 4:24.26 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 21 | Myles TURNER | 16 | | West Suffolk | 4:14.48 |
| 2 | 24 | Luke SUGDEN | 17 | | Hatfield | 4:11.53 |
| 3 | 27 | Cameron MCRAE | 17 | | Co Peterboro | 4:09.71 |
| 4 | 30 | Harry CONSTANTINE | 16 | | Hatfield | 4:08.80 |
| 5 | 29 | Matthew WRIGHT | 18 | | Team Luton | 4:09.38 |
| 6 | 26 | Thomas MCLAGAN | 20 | | Chelmsford | 4:11.19 |
| 7 | 23 | Bayley FINBOW | 16 | | teamipswich | 4:12.24 |
| 8 | 20 | Ryan KELLY | 17 | | Chelmsford | 4:14.87 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 32 | Augustus VEASEY | 20 | | Chelmsford | 4:07.38 |
| 2 | 35 | George EPSLY | 18 | | Basildon Ph | 4:04.03 |
| 3 | 38 | Joshua DUGGAN | 20 | | Hatfield | 3:59.01 |
| 4 | 40 | Nathan WELLS | 18 | | West Norfolk | 3:55.01 |
| 5 | 39 | Regan LLOYD | 19 | | teamipswich | 3:57.40 |
| 6 | 36 | Luke TURLEY | 16 | | Hatfield | 4:01.22 |
| 7 | 33 | Nathan BENTLEY | 18 | | Hatfield | 4:06.87 |
| 8 | 31 | James WOODWARD | 16 | | Potters Bar | 4:08.73 |