EVENT 213 Mens Open 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Oliver Burns | 13 | Wolv'hampton | 17:49.46 |
| 4 | 3 | Rico Bringeman | 13 | Boston | 17:46.99 |
| 5 | 2 | Bailey Reid | 14 | Blackpool Aq | 17:47.57 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 4 | Toby Hill | 14 | Prescot | 17:46.93 |
| 1 | 6 | Joe Cooper | 14 | teamipswich | 17:45.63 |
| 2 | 8 | James Woods | 14 | Middlesboro | 17:44.87 |
| 3 | 10 | Tymofii Chemeryk | 14 | Mt Kelly | 17:41.68 |
| 4 | 12 | Noah Jameson Neal | 14 | Killerwhales | 17:40.51 |
| 5 | 11 | Henry Maw | 14 | Southport | 17:40.51 |
| 6 | 9 | James Kaye | 13 | Barnet Copt | 17:42.45 |
| 7 | 7 | Finn Wootten | 14 | Beckenham | 17:45.22 |
| 8 | 5 | James Harrington | 14 | Hillingdon | 17:46.57 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 14 | Ben Wright | 14 | Donc Dartes | 17:37.82 |
| 1 | 16 | Bailey Ward | 16 | Nova Cent'n | 17:22.10 |
| 2 | 18 | Owen Webster | 15 | St Felix Sch | 17:19.69 |
| 3 | 20 | Daniel Gencas | 15 | Romford Town | 17:17.40 |
| 4 | 22 | Henry Melrose | 16 | Leatherhead | 17:16.58 |
| 5 | 21 | Ethan Wright | 16 | Winsford | 17:17.34 |
| 6 | 19 | Linus Launhardt | 16 | Mt Kelly | 17:18.96 |
| 7 | 17 | Benjamin Makin | 16 | Pioneer 79 | 17:21.50 |
| 8 | 15 | Jack Haynes | 14 | Wolv'hampton | 17:37.22 |
| 9 | 13 | William Baines | 13 | Bo Stockton | 17:40.48 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 24 | Oliver Etheridge | 15 | Atlantis | 17:14.17 |
| 1 | 26 | Freddie James | 16 | Wantage | 17:13.01 |
| 2 | 28 | Alexander Sargeant | 16 | Millfield | 17:11.83 |
| 3 | 30 | James Bartley | 15 | Mt Kelly | 17:10.41 |
| 4 | 32 | Isaac Von Fintel | 17 | Co Derby | 17:07.76 |
| 5 | 31 | Thomas Trebilcock | 15 | Truro City | 17:09.22 |
| 6 | 29 | Ben Smith | 17 | Co Manch Aq | 17:11.70 |
| 7 | 27 | Jack Gartside | 15 | Northampton | 17:12.43 |
| 8 | 25 | Joseph Day | 17 | Exeter City | 17:13.52 |
| 9 | 23 | Max Underwood | 17 | Co Oxford | 17:14.35 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 34 | Harry Spencer | 17 | Killerwhales | 17:06.93 |
| 1 | 36 | Callum Rushan | 16 | Leek | 17:05.50 |
| 2 | 38 | Thomas Sansome | 15 | Wycombe Dist | 17:04.63 |
| 3 | 40 | Benjamin Foster | 16 | Stockport Mo | 17:03.99 |
| 4 | 42 | Jude Liddiard | 17 | Co St Albans | 17:00.10 |
| 5 | 41 | George Rudd | 16 | Co Oxford | 17:03.54 |
| 6 | 39 | Joshua Fowles | 19 | Witham Dolph | 17:04.42 |
| 7 | 37 | Ellis Stanhope | 16 | Sevenoaks | 17:04.72 |
| 8 | 35 | Joel Donald | 16 | Stockport Mo | 17:05.74 |
| 9 | 33 | Nathan Woodrow | 15 | Co Norwich | 17:07.76 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 44 | Piers Bowden | 17 | Wycombe Dist | 16:58.75 |
| 1 | 46 | Ryan Huddart | 17 | Derventio | 16:55.00 |
| 2 | 48 | Michael McLennan | 20 | Nova Cent'n | 16:54.81 |
| 3 | 50 | Thomas Menlove | 17 | Winchester | 16:51.10 |
| 4 | 52 | Harry Whiteman | 18 | Co Peterboro | 16:44.56 |
| 5 | 51 | Joshua Harris | 17 | Nova Cent'n | 16:44.85 |
| 6 | 49 | Benjamin Prosser | 18 | Wycombe Dist | 16:51.23 |
| 7 | 47 | Luke Bryan | 18 | West Norfolk | 16:54.90 |
| 8 | 45 | Patrick Meggitt | 30 | Co Hereford | 16:55.67 |
| 9 | 43 | Felix Gallagher | 17 | Strat Sharks | 16:58.84 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 54 | Jacob Butterfield | 18 | Co Leeds | 16:42.72 |
| 1 | 56 | James Cross | 18 | Wigan BEST | 16:41.71 |
| 2 | 58 | Elliot Pickford | 18 | Wirral Metro | 16:40.56 |
| 3 | 60 | Scott Provan | 17 | Co Salford | 16:37.90 |
| 4 | 62 | Alex Crossland-Robins | 18 | Stockport Mo | 16:29.55 |
| 5 | 61 | Ralph Muncer | 17 | Co St Albans | 16:34.67 |
| 6 | 59 | Adam Hall | 17 | Tewkesbury | 16:38.47 |
| 7 | 57 | Myles Turner | 18 | West Suffolk | 16:41.10 |
| 8 | 55 | Adam Law | 17 | Bo Kirklees | 16:41.88 |
| 9 | 53 | Rhys Taylor | 18 | Nova Cent'n | 16:44.01 |