EVENT 102 Open/Male 12 /Over 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 2 | Alexander EGGITT | 13 | Donc Dartes | 20:43.91 |
| 1 | 4 | Daniel TEW | 13 | York City | 19:55.53 |
| 2 | 6 | Noah DARNELL | 13 | Co Leeds | 19:50.34 |
| 3 | 8 | Oliver BARRETT | 13 | Co Leeds | 19:44.18 |
| 4 | 10 | Jeffrey LANGE | 13 | Co Leeds | 19:28.13 |
| 5 | 9 | Lewis HALL | 13 | KingstonHull | 19:36.97 |
| 6 | 7 | Jacob IRVING | 13 | Co Liverpool | 19:46.24 |
| 7 | 5 | Daniel FRENCH | 13 | Wirral Metro | 19:50.40 |
| 8 | 3 | Casey COSTAIN | 13 | Wirral Metro | 20:21.40 |
| 9 | 1 | Alfie CRAGGS | 13 | Co Leeds | 21:30.26 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 12 | William DUNN | 13 | Co Leeds | 19:16.01 |
| 1 | 14 | Jacob O'DONNELL | 14 | Co Leeds | 18:55.95 |
| 2 | 16 | William KERSHAW | 14 | Blackpool Aq | 18:37.00 |
| 3 | 18 | Owen CARMODY | 14 | Co Leeds | 18:29.56 |
| 4 | 20 | Benjamin GLAISTER | 15 | RichmondDale | 18:24.60 |
| 5 | 19 | Hayden LAM | 14 | Co Leeds | 18:28.27 |
| 6 | 17 | Connor MCCULLEN | 14 | Co Leeds | 18:36.30 |
| 7 | 15 | Matthew MENZER | 17 | Co Wakefield | 18:43.70 |
| 8 | 13 | William KITE | 15 | Louth | 18:59.10 |
| 9 | 11 | Oscar O'DONNELL | 12 | Co Leeds | 19:21.66 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 22 | Samuel HILL | 15 | Co Leeds | 17:54.47 |
| 1 | 24 | Patrick O'HARA | 14 | Co Leeds | 17:49.62 |
| 2 | 26 | Matthew SAWERS | 15 | Wigan BEST | 17:40.05 |
| 3 | 28 | Luke KAVANAGH | 16 | Wirral Metro | 17:39.60 |
| 4 | 30 | Matthew JAMES | 16 | Co Leeds | 17:35.52 |
| 5 | 29 | Zac BAUGHAN-WITHINGTON | 14 | KingstonHull | 17:39.40 |
| 6 | 27 | Arthur OWENS | 15 | Co Leeds | 17:40.00 |
| 7 | 25 | Theo SWANN | 14 | Rotherham Mo | 17:46.01 |
| 8 | 23 | Aidan KEARNEY | 16 | Co Liverpool | 17:51.20 |
| 9 | 21 | William VERE | 15 | South Lincs | 18:11.50 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 32 | William WILSON | 14 | Co Leeds | 17:19.14 |
| 1 | 34 | Charlie HINSON | 16 | Co Leeds | 17:07.10 |
| 2 | 36 | Joseph HALL | 16 | Co Leeds | 17:03.65 |
| 3 | 38 | Thomas EARDLEY | 17 | RichmondDale | 16:53.56 |
| 4 | 40 | Dylan MADICAN | 15 | Co Liverpool | 16:37.00 |
| 5 | 39 | Luke DYER | 17 | Co Leeds | 16:50.50 |
| 6 | 37 | Jack PRITCHARD | 17 | Wigan BEST | 16:56.80 |
| 7 | 35 | Patrick NEILL | 16 | Co Leeds | 17:04.50 |
| 8 | 33 | Alexander TEW | 15 | York City | 17:10.60 |
| 9 | 31 | Sam WRIGHT | 16 | Tadcaster | 17:34.40 |