EVENT 209 Mens Open 400m Freestyle - Heats
Not Competing : 36
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 2 | 2 | Dermot O'DOHERTY | 15 | | Basildon Ph | 4:30.80 |
| 3 | 4 | Elliot WYLIE | 16 | | Co St Albans | 4:30.31 |
| 4 | 6 | Samuel PECK | 15 | | UEA Norwich | 4:29.70 |
| 5 | 5 | Harrison LEES | 14 | | Watford SC | 4:29.95 |
| 6 | 3 | Jaxon SIMMONS | 15 | S13 | Co Peterboro | 4:30.50 |
| 7 | 1 | Jonah PHILPOTT | 16 | | UEA Norwich | 4:31.07 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 8 | Nathan SWIFT | 14 | | Team Luton | 4:29.10 |
| 2 | 10 | Ryan MOGFORD | 15 | | Chelmsford | 4:27.40 |
| 3 | 12 | Matthew ADDIS | 17 | | West Norfolk | 4:26.21 |
| 4 | 14 | Archie HOLMAN | 17 | | West Norfolk | 4:25.66 |
| 5 | 13 | Alex WALMSLEY | 15 | | teamipswich | 4:25.80 |
| 6 | 11 | Kieran RAPHY | 18 | | Bishop Stort | 4:26.60 |
| 7 | 9 | Jack RYAN | 15 | | Mid Beds | 4:28.10 |
| 8 | 7 | Harvey NORMAN | 14 | | Co Peterboro | 4:29.69 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 16 | Ryan JARVIS | 16 | | Team Luton | 4:24.80 |
| 2 | 18 | Joseph WELLS | 16 | | West Norfolk | 4:24.43 |
| 3 | 20 | Max WILSON | 15 | | Modernians | 4:23.68 |
| 4 | 22 | Alexander MASON | 19 | | Team Luton | 4:21.30 |
| 5 | 21 | James BAYLEY | 15 | | Basildon Ph | 4:22.20 |
| 6 | 19 | Jordan NORTHWOOD | 16 | | Berkhamsted | 4:23.72 |
| 7 | 17 | Harry EADE | 15 | | teamipswich | 4:24.71 |
| 8 | 15 | Harry WHITEMAN | 15 | | Co Peterboro | 4:24.90 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 24 | Keenan STOKES | 17 | | UEA Norwich | 4:21.00 |
| 2 | 26 | Harry FOX | 16 | | Basildon Ph | 4:20.72 |
| 3 | 28 | Jake LLOYD | 20 | | Bishop Stort | 4:18.80 |
| 4 | 30 | Cameron MCRAE | 16 | | Co Peterboro | 4:18.40 |
| 5 | 29 | Ryan KELLY | 16 | | Chelmsford | 4:18.71 |
| 6 | 27 | Joshua FOWLES | 16 | | Witham Dolph | 4:20.35 |
| 7 | 25 | Reese HOUSDEN | 13 | | Hatfield | 4:21.00 |
| 8 | 23 | Erik SULLIVAN | 21 | | Co Cambridge | 4:21.14 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 32 | Myles TURNER | 15 | | West Suffolk | 4:18.20 |
| 2 | 34 | Harry CONSTANTINE | 15 | | Hatfield | 4:17.30 |
| 3 | 37 | Logan MOORE | 17 | | St Felix Sch | 4:16.20 |
| 4 | 39 | Luke SUGDEN | 16 | | Hatfield | 4:15.96 |
| 5 | 38 | James FOWLER | 18 | | Team Luton | 4:16.00 |
| 6 | 35 | Bradley VEITCH | 16 | | Harlow Pen | 4:17.20 |
| 7 | 33 | Ryan SYKES | 19 | | West Norfolk | 4:17.86 |
| 8 | 31 | Bayley FINBOW | 15 | | teamipswich | 4:18.21 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 41 | James DAY | 18 | | Basildon Ph | 4:14.76 |
| 2 | 43 | James DAVIS | 22 | | Basildon Ph | 4:14.57 |
| 3 | 45 | Christopher GREENHALGH | 19 | | Sudbury | 4:13.83 |
| 4 | 47 | Thomas MCLAGAN | 19 | | Chelmsford | 4:08.32 |
| 5 | 46 | Alex PROFFITT | 17 | | West Suffolk | 4:09.57 |
| 6 | 44 | Augustus VEASEY | 19 | | Chelmsford | 4:13.93 |
| 7 | 42 | James WOODWARD | 15 | | Potters Bar | 4:14.70 |
| 8 | 40 | Lawrence LOWMAN | 26 | | Beccles Town | 4:15.18 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 49 | Nathan BENTLEY | 17 | | Hatfield | 4:05.40 |
| 2 | 51 | Daniel LEIGH | 16 | | Co Peterboro | 3:59.90 |
| 3 | 53 | Nathan HUGHES | 15 | | Hatfield | 3:56.20 |
| 4 | 55 | Nathan WELLS | 17 | | West Norfolk | 3:55.00 |
| 5 | 54 | Regan LLOYD | 18 | | teamipswich | 3:55.00 |
| 6 | 52 | Jamie SCHOLES | 15 | | Co Peterboro | 3:58.60 |
| 7 | 50 | Luke TURLEY | 15 | | Hatfield | 4:03.10 |
| 8 | 48 | Matthew WRIGHT | 17 | | Team Luton | 4:08.00 |