EVENT 313 Mens Open 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 2 | Daniel Cox | 14 | Wycombe Dist | 17:31.70 |
| 3 | 4 | Oliver Taylor | 14 | Co Manch Aq | 17:26.10 |
| 4 | 6 | Samuel Ridgley | 14 | Dulwich Dolp | 17:24.71 |
| 5 | 5 | Tyler Melbourne-Smith | 13 | Warrington W | 17:25.30 |
| 6 | 3 | Brandon Cartwright | 14 | Bo Kirklees | 17:29.12 |
| 7 | 1 | Austin Johns | 14 | Co Leicester | 17:31.91 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 8 | Liam Dawson | 13 | Nova Cent'n | 17:19.53 |
| 1 | 10 | Mason Bland | 14 | KingstonHull | 17:18.40 |
| 2 | 12 | Michael Klimaszewski | 14 | Hatfield | 17:14.44 |
| 3 | 14 | Benjamin Shipley | 16 | KingstonHull | 17:03.21 |
| 4 | 16 | Finlay Page | 16 | Havant & Wat | 17:03.07 |
| 5 | 15 | Ben Newell | 15 | Didcot & Bar | 17:03.09 |
| 6 | 13 | Elijah Kendrick | 14 | Shiverers | 17:03.56 |
| 7 | 11 | Samuel Tucker | 14 | Wycombe Dist | 17:15.37 |
| 8 | 9 | Max Adams | 14 | Co Salford | 17:19.10 |
| 9 | 7 | Joshua Weston | 14 | Wycombe Dist | 17:24.12 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 18 | Ben Penhale | 15 | TauntonDeane | 17:02.73 |
| 1 | 20 | Lewis Binning | 15 | Basildon Ph | 16:59.95 |
| 2 | 22 | Adam Banks | 15 | Derventio | 16:57.36 |
| 3 | 24 | Oliver Duckworth | 16 | Grimsby AST | 16:55.96 |
| 4 | 26 | Thomas Owens | 19 | Barnes SC | 16:54.25 |
| 5 | 25 | Jevon Penny | 15 | Northampton | 16:55.51 |
| 6 | 23 | Aarian Lally | 15 | Hillingdon | 16:56.14 |
| 7 | 21 | Kris Moodley | 16 | Nova Cent'n | 16:58.28 |
| 8 | 19 | Jimi Knowles | 15 | Nova Cent'n | 17:00.97 |
| 9 | 17 | Michael Flynn | 15 | Cumbernauld | 17:02.93 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 28 | Brandon Sayers | 20 | Brompton | 16:52.63 |
| 1 | 30 | James McGregor | 14 | Perth City | 16:51.26 |
| 2 | 32 | Thomas Davidson | 16 | Wolv'hampton | 16:46.53 |
| 3 | 34 | Oscar Macartney | 19 | Thanet Swim | 16:45.95 |
| 4 | 36 | Ewan Wilson | 16 | Co Salford | 16:38.48 |
| 5 | 35 | Samuel Blackett | 20 | Northampton | 16:42.12 |
| 6 | 33 | Daniel Donovan | 15 | Guildford Ct | 16:46.10 |
| 7 | 31 | Liam McLaughlin | 16 | Warrender Ba | 16:48.47 |
| 8 | 29 | Joshua Skinner | 15 | Nova Cent'n | 16:51.77 |
| 9 | 27 | Toby Stewart | 15 | Guildford Ct | 16:53.47 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 38 | Marcus Johnson | 19 | Co Milton K | 16:33.17 |
| 1 | 40 | Timothy Leberl | 16 | Beckenham | 16:30.26 |
| 2 | 42 | Henry Pearce | 16 | Co Peterboro | 16:28.99 |
| 3 | 44 | Ciaran Thomas | 16 | Newcastle | 16:26.86 |
| 4 | 46 | Max Jelfs | 17 | Hatfield | 16:26.03 |
| 5 | 45 | Joseph Deighan | 15 | Stockport Mo | 16:26.61 |
| 6 | 43 | Charley Langford | 15 | Thanet Swim | 16:27.73 |
| 7 | 41 | Jackson O'Rourke | 16 | Northampton | 16:30.18 |
| 8 | 39 | John Wright | 21 | Aberdeen Per | 16:33.09 |
| 9 | 37 | Joshua Williams | 16 | Wycombe Dist | 16:33.56 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 48 | Liam Snook | 20 | Northampton | 16:24.54 |
| 1 | 50 | Daniel Marotta | 17 | Swansea Aq | 16:24.37 |
| 2 | 52 | Joseph Kingsland | 15 | Nova Cent'n | 16:23.05 |
| 3 | 54 | Alexander Hindle | 16 | Co Birm'ham | 16:21.27 |
| 4 | 56 | Luke Turley | 18 | Hatfield | 16:20.68 |
| 5 | 55 | Jack Buswell | 17 | Northampton | 16:20.77 |
| 6 | 53 | Marshall Illingworth | 18 | Co Glasgow | 16:22.05 |
| 7 | 51 | Matthew Wright | 20 | Bath Univ | 16:23.33 |
| 8 | 49 | Jamie McCaffray | 17 | Modernian | 16:24.39 |
| 9 | 47 | Daniel Johnson | 16 | Royal Wolv | 16:24.87 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 58 | Hector Pardoe | 17 | Ellesmere Co | 16:18.99 |
| 1 | 60 | Archie Plowman | 17 | Northampton | 16:16.41 |
| 2 | 62 | Bailey Hairsine | 19 | Co Manch Aq | 16:14.94 |
| 3 | 64 | George Barber | 17 | Royal Wolv | 16:13.76 |
| 4 | 66 | Harley Beentjes | 18 | Wigan BEST | 16:12.83 |
| 5 | 65 | Adam Wilson | 17 | Newcastle | 16:13.44 |
| 6 | 63 | Brandon Budd-Thomas | 18 | Swansea Aq | 16:14.94 |
| 7 | 61 | Jacques Bonsell | 19 | Blackpool Aq | 16:15.19 |
| 8 | 59 | Ioan Evans | 16 | Co Cardiff | 16:17.54 |
| 9 | 57 | Joel Thompson | 17 | Ellesmere Co | 16:20.46 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 68 | Max Murphy | 18 | Co Milton K | 16:04.85 |
| 1 | 70 | Ryan Reader | 20 | Derventio | 15:56.94 |
| 2 | 72 | Kieran Bird | 19 | Millfield | 15:47.13 |
| 3 | 74 | Samuel Budd | 20 | Co Sheffield | 15:41.40 |
| 4 | 76 | Nathan Hughes | 18 | Hatfield | 15:33.12 |
| 5 | 75 | William Bell | 16 | Co Leicester | 15:40.99 |
| 6 | 73 | William Ryley | 20 | Bath Univ | 15:45.45 |
| 7 | 71 | Jamie Scholes | 18 | Co Peterboro | 15:53.31 |
| 8 | 69 | Samuel Osborne | 17 | Co Birm'ham | 15:59.58 |
| 9 | 67 | Nathan Wells | 20 | Loughboro Un | 16:06.47 |