EVENT 201 Boys Open 400m Freestyle - Heats
Not Competing : 27,32
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Callum FRENCH | 12 | Satellite | 5:51.70 |
| 2 | 3 | Jacob CALOW | 13 | Co Sheffield | 5:34.94 |
| 3 | 5 | Oliver CREIGHTON | 13 | York City | 5:22.74 |
| 4 | 7 | Samuel ANTROBUS | 11 | Bo Stockton | 5:11.24 |
| 5 | 6 | Dariush KHODAKHAH | 13 | Co Leeds | 5:12.80 |
| 6 | 4 | Solomon HODGSON | 12 | Co Leeds | 5:25.49 |
| 7 | 2 | Joshua BROMPTON | 13 | Co Leeds | 5:36.55 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 9 | Joshua SUTCLIFFE | 13 | Co Leeds | 5:00.98 |
| 1 | 11 | Elliott WATKINS | 13 | Co Leeds | 4:56.48 |
| 2 | 13 | Samuel EMMETT | 13 | Co Leeds | 4:55.10 |
| 3 | 15 | Charlie BROOME | 14 | Co Leeds | 4:50.61 |
| 4 | 17 | Matthew CAIRNS | 13 | Durham City | 4:43.77 |
| 5 | 16 | Benjamin ROGERS | 13 | Bo Stockton | 4:47.29 |
| 6 | 14 | Rhys RIDDIFORD | 13 | Co Leeds | 4:53.72 |
| 7 | 12 | George KNOWLES | 13 | Co Leeds | 4:56.28 |
| 8 | 10 | Benjamin HUGHES | 14 | Grimsby AST | 4:58.12 |
| 9 | 8 | Robbie THOMPSON | 13 | Bo Stockton | 5:05.35 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 20 | James NEWELL | 15 | Bo Stockton | 4:40.05 |
| 1 | 24 | Thomas ENGLISH | 14 | Chester Le S | 4:31.19 |
| 2 | 29 | Harri THORMAN | 15 | Rotherham Mo | 4:24.72 |
| 3 | 34 | Matthew YEOMANS | 16 | Co Leeds | 4:17.14 |
| 4 | 38 | Marcus COOK | 17 | Crewe Flyers | 4:15.01 |
| 5 | 36 | Akal.S. REHAL | 15 | Co Leeds | 4:16.24 |
| 6 | 31 | Isaac DODDS | 14 | TigersJersey | 4:24.08 |
| 7 | 26 | Jamie BROOME | 16 | Co Leeds | 4:29.98 |
| 8 | 22 | Barnaby HOWARTH-OSBORN | 14 | Sheffield C | 4:33.50 |
| 9 | 18 | Cohen STEPHENSON | 13 | Donc Dartes | 4:42.90 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 21 | Lewis BAKER | 14 | Co Sheffield | 4:38.44 |
| 1 | 25 | Ben SHELTON | 14 | Co Leeds | 4:30.59 |
| 2 | 30 | Ben WRIGHT | 14 | Donc Dartes | 4:24.09 |
| 3 | 35 | Simon KLIMENT | 17 | Co Sheffield | 4:16.38 |
| 4 | 39 | Samuel SALIH | 16 | Co Sheffield | 4:09.94 |
| 5 | 37 | William EARL | 16 | Co Sheffield | 4:15.75 |
| 6 | 33 | Joe KELLY | 15 | Scarborough | 4:20.57 |
| 7 | 28 | Benji GILLINGHAM | 16 | Mt Kelly | 4:27.00 |
| 8 | 23 | Emilio PANIAGUA-GUTIER | 14 | Co Leeds | 4:31.47 |
| 9 | 19 | Samuel HOWARTH | 15 | Aquabears | 4:41.25 |