EVENT 311 Mens Open 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 3 | 2 | Miles Farrington | 02 | Swindon Dolp | 17:36.44 |
| 4 | 4 | Edward Mildred | 03 | Northampton | 17:32.91 |
| 5 | 3 | Leevi Gumbs | 02 | Co Liverpool | 17:35.66 |
| 6 | 1 | Daniel Johnson | 02 | Royal Wolv | 17:37.26 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 6 | James Cooper | 02 | Basildon Ph | 17:26.04 |
| 1 | 8 | James Newman | 02 | Co Leicester | 17:21.24 |
| 2 | 10 | Pietro Forconi | 03 | Winchester | 17:17.06 |
| 3 | 12 | Timothy Leberl | 02 | Beckenham | 17:15.11 |
| 4 | 14 | Pierce Greening | 03 | Cockermouth | 17:13.01 |
| 5 | 13 | Alexander Hindle | 02 | Co Birm'ham | 17:14.27 |
| 6 | 11 | Dante Des Rosier | 02 | Ellesmere Co | 17:16.95 |
| 7 | 9 | Benjamin Foster | 02 | Stockport Mo | 17:18.00 |
| 8 | 7 | Keir Buchanan | 02 | SLanarkshire | 17:21.99 |
| 9 | 5 | Daniel Butler | 02 | Chester Le S | 17:32.80 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 16 | William Chapman | 01 | Barnet Copt | 17:09.85 |
| 1 | 18 | Joshua Loney | 01 | Swansea Aq | 17:00.96 |
| 2 | 20 | George Barber | 01 | Grimsby AST | 16:56.92 |
| 3 | 22 | William Martin | 00 | Maxwell | 16:52.48 |
| 4 | 24 | Daniel Marotta | 01 | Swansea Aq | 16:52.00 |
| 5 | 23 | Thomas Jeffers | 00 | Perth City | 16:52.30 |
| 6 | 21 | Ioan Evans | 02 | Bridgend Cty | 16:54.50 |
| 7 | 19 | Scott Provan | 01 | Co Salford | 16:59.94 |
| 8 | 17 | Billy Harrison | 01 | Romford Town | 17:02.57 |
| 9 | 15 | Joel Sinclair | 02 | Carlisle Aq | 17:11.38 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 26 | Max Wilson | 00 | Modernian | 16:50.17 |
| 1 | 28 | Alfie Kelly | 01 | Newcastle | 16:49.39 |
| 2 | 30 | Llewelyn Davies | 01 | Swansea Aq | 16:47.21 |
| 3 | 32 | Samuel Dyer | 00 | Northampton | 16:46.33 |
| 4 | 34 | Rhys Taylor | 00 | Nova Cent'n | 16:43.40 |
| 5 | 33 | Jamie McCaffray | 01 | Modernian | 16:45.42 |
| 6 | 31 | Harry Bamforth | 00 | Ellesmere Co | 16:46.65 |
| 7 | 29 | Marshall Illingworth | 00 | Sth Ayrshire | 16:47.58 |
| 8 | 27 | Oliver O'Halleron | 00 | Derwentside | 16:49.49 |
| 9 | 25 | Jack Buswell | 01 | Northampton | 16:50.74 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 36 | Brandon Budd-Thomas | 00 | Swansea Aq | 16:42.35 |
| 1 | 38 | Thomas Owens | 99 | Barnes SC | 16:38.05 |
| 2 | 40 | Hector Pardoe | 01 | Ellesmere Co | 16:34.04 |
| 3 | 42 | Nathan Wells | 99 | Ellesmere Co | 16:32.77 |
| 4 | 44 | Jamie Scholes | 00 | Co Peterboro | 16:30.09 |
| 5 | 43 | James Watson | 00 | Swindon Dolp | 16:32.44 |
| 6 | 41 | Jacob Butterfield | 00 | Co Leeds | 16:33.33 |
| 7 | 39 | Joel Thompson | 01 | Shiverers | 16:36.23 |
| 8 | 37 | Adam Wilson | 01 | Newcastle | 16:41.09 |
| 9 | 35 | Archie Plowman | 01 | Northampton | 16:42.93 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 46 | Kieran Bird | 99 | Bicester | 16:28.75 |
| 1 | 48 | William Bell | 02 | Co Leicester | 16:28.03 |
| 2 | 50 | Jacques Bonsell | 99 | Blackpool Aq | 16:24.50 |
| 3 | 52 | Samuel Osborne | 01 | Co Birm'ham | 16:23.57 |
| 4 | 54 | Callum Pardoe | 96 | Swansea Aq | 16:22.94 |
| 5 | 53 | Joel Allen | 97 | Co Leicester | 16:23.02 |
| 6 | 51 | Casey Barrett | 99 | Royal Wolv | 16:24.13 |
| 7 | 49 | Liam Snook | 98 | Northampton | 16:27.23 |
| 8 | 47 | William Ryley | 98 | Co Newport | 16:28.19 |
| 9 | 45 | Adam Davies | 01 | Plymouth Lea | 16:29.51 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 56 | Harley Beentjes | 00 | Wigan BEST | 16:22.39 |
| 1 | 58 | Luke Turley | 00 | Hatfield | 16:19.77 |
| 2 | 60 | Ross Hill | 97 | Loughboro Un | 16:17.91 |
| 3 | 62 | Gordon Mason | 99 | Ellesmere Co | 16:09.36 |
| 4 | 64 | Richard Laird | 99 | SLanarkshire | 16:07.66 |
| 5 | 63 | George Taplin | 99 | Maidenhead | 16:09.26 |
| 6 | 61 | Jamie O'Connor | 99 | Thanet Swim | 16:11.55 |
| 7 | 59 | Nathan Wells | 98 | West Norfolk | 16:19.40 |
| 8 | 57 | Jakob Goodman | 00 | Millfield | 16:21.56 |
| 9 | 55 | Thomas Millburn | 98 | Cockermouth | 16:22.53 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 0 | 66 | Jack Baister | 97 | Loughboro Un | 16:03.32 |
| 1 | 68 | Samuel Budd | 98 | Co Sheffield | 15:57.64 |
| 2 | 70 | Chris Lowther | 95 | Co Glasgow | 15:55.21 |
| 3 | 72 | Tom Derbyshire | 98 | Royal Wolv | 15:25.93 |
| 4 | 74 | Caleb Hughes | 95 | Loughboro Un | 15:11.83 |
| 5 | 73 | Jay Lelliott | 95 | Bath Univ | 15:21.97 |
| 6 | 71 | Nathan Hughes | 00 | Hatfield | 15:33.18 |
| 7 | 69 | Thomas Howley | 96 | Newcastle | 15:55.32 |
| 8 | 67 | Angus Barr | 98 | SLanarkshire | 16:02.90 |
| 9 | 65 | Cameron Croot | 99 | Swansea Aq | 16:07.52 |