EVENT 214 Mens Open 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Mason Bland | 14 | KingstonHull | 16:51.36 |
| 1 | 3 | Akal Rehal | 15 | Co Leeds | 16:48.61 |
| 2 | 5 | James Woods | 14 | Middlesboro | 16:47.53 |
| 3 | 7 | Hubert Gdaniec | 14 | Plymouth Lea | 16:46.19 |
| 4 | 9 | Aarian Lally | 15 | Hamilton UAE | 16:43.19 |
| 5 | 8 | Max Adams | 14 | Co Salford | 16:46.07 |
| 6 | 6 | Ethan Sutcliffe | 15 | Co Leeds | 16:47.33 |
| 7 | 4 | Jack Gartside | 15 | Northampton | 16:47.69 |
| 8 | 2 | Adam Strickland | 14 | Derwentside | 16:51.04 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 11 | Yann Divet | 15 | Camden Swiss | 16:41.57 |
| 1 | 13 | Daniel Donovan | 15 | Guildford Ct | 16:38.98 |
| 2 | 15 | Liam Dawson | 13 | Nova Cent'n | 16:36.74 |
| 3 | 17 | Adam Banks | 15 | Derventio | 16:35.04 |
| 4 | 19 | Daniel Gencas | 15 | Romford Town | 16:33.21 |
| 5 | 18 | Andrew Hall | 15 | Nova Cent'n | 16:34.59 |
| 6 | 16 | Aidan Mitchell | 15 | Co Birm'ham | 16:35.24 |
| 7 | 14 | Matthew Woodhall | 14 | Co Sheffield | 16:38.05 |
| 8 | 12 | Samuel Rose | 15 | West Norfolk | 16:40.33 |
| 9 | 10 | Elijah Kendrick | 14 | Shiverers | 16:43.04 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 21 | Oliver Taylor | 14 | Co Manch Aq | 16:30.17 |
| 1 | 23 | Pietro Forconi | 15 | Portsmouth N | 16:28.76 |
| 2 | 25 | Thomas Trebilcock | 15 | Truro City | 16:21.96 |
| 3 | 27 | Jevon Penny | 15 | Northampton | 16:17.05 |
| 4 | 29 | Michael Klimaszewski | 14 | Hatfield | 16:11.06 |
| 5 | 28 | Joey Tippin | 15 | Co Leicester | 16:11.48 |
| 6 | 26 | Thomas Sansome | 15 | Wycombe Dist | 16:18.44 |
| 7 | 24 | James Bartley | 15 | Mt Kelly | 16:27.07 |
| 8 | 22 | Joshua Weston | 14 | Wycombe Dist | 16:29.40 |
| 9 | 20 | Owen Webster | 15 | St Felix Sch | 16:31.58 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 31 | Ben Newell | 15 | Didcot & Bar | 16:08.72 |
| 1 | 33 | Joseph Deighan | 15 | Stockport Mo | 16:01.86 |
| 2 | 35 | Ralph Muncer | 17 | Co St Albans | 16:00.65 |
| 3 | 37 | Henry Pearce | 16 | Co Peterboro | 15:58.05 |
| 4 | 39 | Marcus Johnson | 19 | Co Milton K | 15:55.48 |
| 5 | 38 | Jackson O'Rourke | 16 | Northampton | 15:57.09 |
| 6 | 36 | Max Jelfs | 17 | Hatfield | 15:59.19 |
| 7 | 34 | Adam Hall | 17 | Tewkesbury | 16:00.88 |
| 8 | 32 | Joseph Kingsland | 15 | Nova Cent'n | 16:06.73 |
| 9 | 30 | Samuel Tucker | 14 | Wycombe Dist | 16:09.50 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 41 | Max Murphy | 18 | Loughboro Un | 15:54.04 |
| 1 | 43 | Jack Buswell | 17 | Northampton | 15:51.18 |
| 2 | 45 | Charley Langford | 15 | Thanet Swim | 15:49.39 |
| 3 | 47 | Adam Wilson | 17 | Newcastle | 15:43.39 |
| 4 | 49 | Nathan Wells | 20 | Loughboro Un | 15:34.43 |
| 5 | 48 | Matthew Wright | 20 | Bath Univ | 15:40.69 |
| 6 | 46 | Ioan Evans | 16 | Millfield | 15:44.18 |
| 7 | 44 | Thomas Davidson | 16 | Wolv'hampton | 15:50.21 |
| 8 | 42 | Jacques Bonsell | 19 | Co Cambridge | 15:51.43 |
| 9 | 40 | Ciaran Thomas | 16 | Newcastle | 15:54.95 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 51 | Kieran Bird | 19 | Bath Univ | 15:30.88 |
| 1 | 53 | William Ryley | 20 | Bath Univ | 15:22.73 |
| 2 | 55 | Luke Turley | 18 | Bath Univ | 15:17.86 |
| 3 | 57 | Nathan Hughes | 18 | Hatfield | 15:01.51 |
| 4 | 59 | Tobias Robinson | 22 | Loughboro Un | 14:57.67 |
| 5 | 58 | Tom Derbyshire | 20 | Bath Univ | 14:59.97 |
| 6 | 56 | Samuel Budd | 20 | Co Sheffield | 15:14.99 |
| 7 | 54 | Davide Arioli | 16 | Millfield | 15:18.06 |
| 8 | 52 | Joshua Williams | 16 | Wycombe Dist | 15:29.86 |
| 9 | 50 | Alexander Hindle | 16 | Co Birm'ham | 15:32.00 |