EVENT 124 Mens Open 400m IM - Heats
Not Competing : 7,16,25,37
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | William TOZER | 15 | West Suffolk | 5:12.63 |
| 2 | 3 | Ben WOODHOUSE | 15 | Norwich Swan | 5:12.01 |
| 3 | 5 | Daniel BLERKOM | 15 | Southend | 5:11.42 |
| 4 | 8 | Edward MCFARLAND | 15 | C Beds SS | 5:07.65 |
| 5 | 6 | Samuel BULLINGHAM | 15 | West Suffolk | 5:10.10 |
| 6 | 4 | Euan DONALD | 15 | Berkhamsted | 5:11.62 |
| 7 | 2 | Callum STEDMAN | 15 | Dereham | 5:12.40 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 10 | Mason HUNNISETT | 16 | Basildon Ph | 5:05.50 |
| 2 | 12 | Teal'K SMITH | 15 | Beccles Town | 5:02.70 |
| 3 | 14 | Freddie LAWS | 15 | West Norfolk | 5:02.60 |
| 4 | 17 | Mattias MORSE | 15 | Hemel Hemp | 4:59.99 |
| 5 | 15 | William HANDLEY | 16 | Stowmarket | 5:02.01 |
| 6 | 13 | Owen VAUGHAN | 15 | Chelmsford | 5:02.62 |
| 7 | 11 | Joshua THURSTON-WOOLNO | 15 | Beccles Town | 5:04.25 |
| 8 | 9 | Luke PESTAILLE | 15 | Hatfield | 5:05.84 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 19 | Yannik WILSON | 16 | Harpenden | 4:57.53 |
| 2 | 21 | Nicholas BOTHA | 16 | Bishop Stort | 4:51.85 |
| 3 | 23 | William LOVEMAN | 18 | Co St Albans | 4:50.59 |
| 4 | 26 | Finlay RYAN | 19 | West Norfolk | 4:47.86 |
| 5 | 24 | Thomas BOYT | 19 | Felixstowe | 4:49.29 |
| 6 | 22 | Jack SANGSTER | 17 | Modernian | 4:51.51 |
| 7 | 20 | William PESTELL | 15 | teamipswich | 4:55.79 |
| 8 | 18 | Joshua BRIDGELAND | 15 | Hatfield | 4:59.36 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 28 | Jamie MCCAFFRAY | 17 | Modernian | 4:47.60 |
| 2 | 30 | Callum WOLLASTON | 17 | Bor of Brox | 4:46.50 |
| 3 | 32 | Henry PEARCE | 16 | Co Peterboro | 4:45.20 |
| 4 | 34 | Harry WHITEMAN | 18 | Co Peterboro | 4:44.00 |
| 5 | 33 | Liam BRENNAN | 16 | Basildon Ph | 4:44.92 |
| 6 | 31 | Sam PERKINS | 16 | teamipswich | 4:45.64 |
| 7 | 29 | Christopher GREENHALGH | 22 | West Suffolk | 4:46.78 |
| 8 | 27 | Ryan KELLY | 19 | Chelmsford | 4:47.80 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 36 | Nathan WOODROW | 15 | Co Norwich | 4:43.00 |
| 2 | 39 | Herbie KINDER | 16 | Co Peterboro | 4:36.90 |
| 3 | 41 | Myles TURNER | 18 | West Suffolk | 4:32.90 |
| 4 | 43 | Nathan HUGHES | 18 | Hatfield | 4:21.80 |
| 5 | 42 | Samuel PECK | 18 | West Norfolk | 4:32.31 |
| 6 | 40 | Jamie SCHOLES | 18 | Co Peterboro | 4:36.30 |
| 7 | 38 | Luke BRYAN | 18 | West Norfolk | 4:42.00 |
| 8 | 35 | Lewis BINNING | 15 | Basildon Ph | 4:43.40 |