EVENT 209 Mens Open 400m Freestyle - Heats
Not Competing : 7,20,42
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 2 | 2 | Ross BARNSHAW | 18 | | Beccles Town | 4:30.95 |
| 3 | 4 | Herbie KINDER | 14 | | Co Peterboro | 4:29.80 |
| 4 | 6 | Matthew ADDIS | 18 | | West Norfolk | 4:28.91 |
| 5 | 5 | Louis HINES | 19 | S14 | Watford SC | 4:29.20 |
| 6 | 3 | Owen WEBSTER | 13 | | St Felix Sch | 4:30.41 |
| 7 | 1 | Callum HODGSON | 16 | S14 | Basildon Ph | 4:56.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 9 | Luke BRYAN | 16 | | West Norfolk | 4:26.75 |
| 2 | 11 | Ryan MOGFORD | 16 | | Chelmsford | 4:24.52 |
| 3 | 13 | Joshua BRISTOW | 14 | | Modernians | 4:24.50 |
| 4 | 15 | Thomas BOYT | 17 | | Felixstowe | 4:24.01 |
| 5 | 14 | Joseph WELLS | 17 | | West Norfolk | 4:24.45 |
| 6 | 12 | Michael RIPPER | 15 | | Co St Albans | 4:24.52 |
| 7 | 10 | Harvey SKELLERN | 14 | | Co Cambridge | 4:25.61 |
| 8 | 8 | James CHENNELLS | 15 | | Berkhamsted | 4:27.68 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 17 | Harrison LEES | 15 | | Watford SC | 4:23.78 |
| 2 | 19 | Adam MARTIN | 16 | | Potters Bar | 4:23.02 |
| 3 | 22 | Ayotobi LAGUDA | 14 | | Hatfield | 4:21.34 |
| 4 | 24 | Ralph MUNCER | 15 | | Team Luton | 4:18.09 |
| 5 | 23 | Cavan BECK | 17 | | Rochford | 4:18.20 |
| 6 | 21 | Cole JAMES | 15 | | Hatfield | 4:21.70 |
| 7 | 18 | Henry PEARCE | 14 | | Co Peterboro | 4:23.44 |
| 8 | 16 | Jaxon SIMMONS | 16 | S13 | Co Peterboro | 4:24.00 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 26 | Max JELFS | 15 | | Hatfield | 4:16.41 |
| 2 | 28 | James COOPER | 14 | | Basildon Ph | 4:16.00 |
| 3 | 30 | Harry WHITEMAN | 16 | | Co Peterboro | 4:15.30 |
| 4 | 32 | Joshua FOWLES | 17 | | Witham Dolph | 4:15.07 |
| 5 | 31 | Anthony SMITH | 16 | | Hatfield | 4:15.16 |
| 6 | 29 | Alexander MASON | 20 | | Team Luton | 4:15.40 |
| 7 | 27 | Ryan KELLY | 17 | | Chelmsford | 4:16.20 |
| 8 | 25 | James BAYLEY | 16 | | Basildon Ph | 4:16.50 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 34 | Myles ROBINSON-YOUNG | 14 | | Co Peterboro | 4:13.60 |
| 2 | 36 | Max WILSON | 16 | | Modernians | 4:12.30 |
| 3 | 38 | Luke SUGDEN | 17 | | Hatfield | 4:11.53 |
| 4 | 40 | Bradley VEITCH | 17 | | Bishop Stort | 4:09.46 |
| 5 | 39 | Bayley FINBOW | 16 | | teamipswich | 4:10.19 |
| 6 | 37 | James DAVIS | 23 | | Basildon Ph | 4:12.02 |
| 7 | 35 | Jamie MCCAFFRAY | 15 | | Modernians | 4:13.50 |
| 8 | 33 | Elliot WYLIE | 17 | | Hatfield | 4:14.81 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 43 | Mihai ANGHEL | 20 | | teamipswich | 4:06.49 |
| 2 | 45 | Jamie SCHOLES | 16 | | Co Peterboro | 4:00.28 |
| 3 | 47 | Nathan WELLS | 18 | | West Norfolk | 3:54.40 |
| 4 | 49 | Nathan HUGHES | 16 | | Hatfield | 3:49.10 |
| 5 | 48 | Luke TURLEY | 16 | | Hatfield | 3:49.80 |
| 6 | 46 | Regan LLOYD | 19 | | teamipswich | 3:55.80 |
| 7 | 44 | Harry CONSTANTINE | 16 | | Hatfield | 4:02.40 |
| 8 | 41 | Myles TURNER | 16 | | West Suffolk | 4:08.90 |