EVENT 313 Mens Open 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 1 | Cillian McGuinness | 14 | Bassetlaw SS | 17:32.45 |
| 3 | 3 | Max Shaw | 14 | Co Milton K | 17:30.86 |
| 4 | 5 | Harry Wynne-Jones | 14 | Co Milton K | 17:27.95 |
| 5 | 4 | Alexander Volkovoy | 14 | Co Salford | 17:30.65 |
| 6 | 2 | James Kaye | 14 | Barnet Copt | 17:31.06 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 7 | Luke Critchlow | 14 | Stockport Mo | 17:20.89 |
| 1 | 9 | Rico Bringeman | 14 | Boston | 17:17.36 |
| 2 | 11 | David Allen | 14 | Black Lion | 17:14.07 |
| 3 | 13 | Archie Hawkins | 14 | Thanet Swim | 17:10.84 |
| 4 | 15 | Jon Taylor | 15 | Aberdeen Per | 17:09.52 |
| 5 | 14 | Daniel Cox | 15 | Wycombe Dist | 17:10.25 |
| 6 | 12 | Joshua O Brien | 14 | Co Cardiff | 17:12.89 |
| 7 | 10 | Ben Merriman | 14 | Torfaen D | 17:16.68 |
| 8 | 8 | Reece Grady | 14 | Stockport Mo | 17:20.01 |
| 9 | 6 | Sean McCann | 14 | Co Leicester | 17:27.94 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 17 | James Harrington | 15 | Hillingdon | 17:05.55 |
| 1 | 19 | Elijah Kendrick | 15 | Shiverers | 17:04.37 |
| 2 | 21 | William Baines | 14 | Bo Stockton | 17:04.19 |
| 3 | 23 | Aidan Mitchell | 16 | Co Birm'ham | 17:03.22 |
| 4 | 25 | Liam Snook | 21 | Northampton | 17:00.98 |
| 5 | 24 | Thomas Owens | 20 | Bath Univ | 17:01.23 |
| 6 | 22 | Elliot Pickford | 19 | Co Manch Aq | 17:03.52 |
| 7 | 20 | Hubert Gdaniec | 15 | Plymouth Lea | 17:04.34 |
| 8 | 18 | Tyler Melbourne-Smith | 14 | Co Liverpool | 17:04.42 |
| 9 | 16 | James Woods | 15 | Middlesboro | 17:08.19 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 27 | Oliver Taylor | 15 | Co Manch Aq | 17:00.46 |
| 1 | 29 | Cameron Carlos | 14 | Barnet Copt | 16:59.60 |
| 2 | 31 | Marcus Tambling | 16 | Hackney | 16:58.67 |
| 3 | 33 | Tymofii Chemeryk | 15 | Mt Kelly | 16:56.96 |
| 4 | 35 | Alex Crossland-Robins | 19 | UniOfStirl | 16:54.58 |
| 5 | 34 | Myles Turner | 19 | Co Cambridge | 16:55.05 |
| 6 | 32 | Noah Jameson Neal | 15 | Basildon Ph | 16:58.26 |
| 7 | 30 | Thomas Trebilcock | 16 | Truro City | 16:59.44 |
| 8 | 28 | Samuel Ridgley | 15 | Dulwich Dolp | 16:59.74 |
| 9 | 26 | Cameron Travis | 15 | Aberdeen Per | 17:00.46 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 37 | Ryan Duncan | 16 | St Thomas | 16:52.54 |
| 1 | 39 | Benjamin Tritton | 19 | SurreyUni SC | 16:50.97 |
| 2 | 41 | Isaac Dodds | 15 | TigersJersey | 16:49.51 |
| 3 | 43 | Joshua Weston | 15 | Wycombe Dist | 16:45.96 |
| 4 | 45 | Ethan Sutcliffe | 16 | Co Leeds | 16:45.47 |
| 5 | 44 | Thomas Deffains | 15 | TigersJersey | 16:45.82 |
| 6 | 42 | James Bartley | 16 | Mt Kelly | 16:46.38 |
| 7 | 40 | Lewis Binning | 16 | Basildon Ph | 16:50.41 |
| 8 | 38 | Mason Bland | 15 | KingstonHull | 16:52.30 |
| 9 | 36 | Matthew Woodhall | 15 | Co Sheffield | 16:54.40 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 47 | Yann Divet | 16 | Camden Swiss | 16:45.12 |
| 1 | 49 | Ben Newell | 16 | Didcot & Bar | 16:43.13 |
| 2 | 51 | Joshua Vance | 16 | Northampton | 16:40.50 |
| 3 | 53 | Joshua Fowles | 20 | Witham Dolph | 16:35.13 |
| 4 | 55 | Thomas Sansome | 16 | Wycombe Dist | 16:33.84 |
| 5 | 54 | Harley Beentjes | 19 | Edinburgh Un | 16:34.07 |
| 6 | 52 | Samuel Blackett | 21 | Northampton | 16:39.46 |
| 7 | 50 | Michael Klimaszewski | 15 | Hatfield | 16:40.61 |
| 8 | 48 | Liam Dawson | 14 | Nova Cent'n | 16:44.78 |
| 9 | 46 | Benjamin Prosser | 19 | Wycombe Dist | 16:45.28 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 57 | Joey Tippin | 16 | Co Leicester | 16:33.37 |
| 1 | 59 | Daniel Johnson | 17 | Royal Wolv | 16:27.28 |
| 2 | 61 | Marshall Illingworth | 19 | Co Glasgow | 16:26.81 |
| 3 | 63 | Jamie McCaffray | 18 | Modernian | 16:23.76 |
| 4 | 65 | Adam Hall | 18 | Tewkesbury | 16:22.61 |
| 5 | 64 | Joshua Williams | 17 | Wycombe Dist | 16:22.63 |
| 6 | 62 | Henry Pearce | 17 | Co Peterboro | 16:25.34 |
| 7 | 60 | Daniel Marotta | 18 | Swansea Aq | 16:27.00 |
| 8 | 58 | Joshua Skinner | 16 | Nova Cent'n | 16:30.07 |
| 9 | 56 | Max Adams | 15 | Co Salford | 16:33.46 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 67 | Joseph Kingsland | 16 | Nova Cent'n | 16:22.36 |
| 1 | 69 | Bailey Hairsine | 20 | Co Manch Aq | 16:21.23 |
| 2 | 71 | Archie Plowman | 18 | Northampton | 16:20.27 |
| 3 | 73 | Jackson O'Rourke | 17 | Northampton | 16:18.79 |
| 4 | 75 | Joel Thompson | 18 | Ellesmere Co | 16:16.98 |
| 5 | 74 | Ralph Muncer | 18 | Co St Albans | 16:17.98 |
| 6 | 72 | Jack Buswell | 18 | Northampton | 16:19.28 |
| 7 | 70 | Charley Langford | 16 | Thanet Swim | 16:20.54 |
| 8 | 68 | Jevon Penny | 16 | Northampton | 16:22.27 |
| 9 | 66 | Liam McLaughlin | 17 | Warrender Ba | 16:22.44 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 77 | George Barber | 18 | Royal Wolv | 16:10.26 |
| 1 | 79 | Ioan Evans | 17 | Millfield | 16:02.62 |
| 2 | 81 | Adam Wilson | 18 | Newcastle | 16:00.25 |
| 3 | 83 | William Ryley | 21 | Bath Univ | 15:40.64 |
| 4 | 85 | Tom Derbyshire | 21 | Bath NC | 15:25.38 |
| 5 | 84 | Kieran Bird | 20 | Wycombe Dist | 15:28.92 |
| 6 | 82 | Hector Pardoe | 18 | Ellesmere Co | 15:48.30 |
| 7 | 80 | Alexander Hindle | 17 | Co Birm'ham | 16:01.07 |
| 8 | 78 | Ciaran Thomas | 17 | Newcastle | 16:08.06 |
| 9 | 76 | Daniel Donovan | 16 | Guildford Ct | 16:16.75 |