EVENT 306 Men 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Samuel Lander | 16 | Mt Kelly | 16:27.74 |
| 2 | 2 | Thomas Evans | 16 | Teddington | 16:26.93 |
| 3 | 3 | George Daintith | 14 | Warrington W | 16:25.92 |
| 4 | 4 | Joseph Moment | 16 | KingstonHull | 16:25.09 |
| 5 | 5 | Nathan Potter | 17 | Maidenhead | 16:20.07 |
| 6 | 6 | Luke Critchlow | 17 | Stockport Mo | 16:20.05 |
| 7 | 7 | Lawrence Elliott | 17 | Seagulls SC | 16:20.02 |
| 8 | 8 | Finlay Pope | 15 | Stockport Mo | 16:19.39 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 9 | Samuel Grimes | 16 | Wigan BEST | 16:17.75 |
| 1 | 10 | Hayden Annan | 15 | RTW Monson | 16:15.05 |
| 2 | 11 | Raheel Mahmood | 15 | Romford Town | 16:12.75 |
| 3 | 12 | Joshua Keogh | 14 | Bolton Metro | 16:12.42 |
| 4 | 13 | Daniel McGuinness | 16 | Basildon Ph | 16:09.57 |
| 5 | 14 | Rafae Shafi | 17 | Co Peterboro | 16:08.35 |
| 6 | 15 | James Raw | 15 | Co Leicester | 16:08.20 |
| 7 | 16 | Ivan Hart | 16 | Millfield | 16:07.94 |
| 8 | 17 | Luke Poulton | 16 | Wycombe Dist | 16:05.53 |
| 9 | 18 | James Kaye | 17 | Barnet Copt | 16:05.35 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 19 | Timothy Leberl | 20 | Beckenham | 16:02.56 |
| 1 | 20 | Oliver Rowe | 16 | Mt Kelly | 16:01.54 |
| 2 | 21 | Jack Booth Rudd | 18 | Maidenhead | 15:59.03 |
| 3 | 22 | Daniel English | 20 | Birm'ham Uni | 15:57.03 |
| 4 | 23 | Hubert Gdaniec | 18 | Mt Kelly | 15:54.79 |
| 5 | 24 | Tom Hawkins | 15 | RTW Monson | 15:53.38 |
| 6 | 25 | Luca Staines | 18 | Swansea Uni | 15:52.45 |
| 7 | 26 | Alexander Volkovoy | 17 | Co Salford | 15:51.29 |
| 8 | 27 | Sean McCann | 17 | Co Leicester | 15:45.29 |
| 9 | 28 | George Pearson | 16 | Wycombe Dist | 15:44.72 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 30 | Daniel Cox | 18 | Wycombe Dist | 15:42.72 |
| 1 | 32 | Luke Booth | 17 | Rotherham Mo | 15:39.86 |
| 2 | 34 | Luke McGee | 16 | Co Sund'land | 15:37.95 |
| 3 | 36 | Joseph Deighan | 19 | Swansea Uni | 15:22.02 |
| 4 | 38 | Tyler Melbourne-Smith | 17 | Co Liverpool | 15:08.69 |
| 5 | 37 | Nathan Hughes | 22 | Swansea Uni | 15:13.05 |
| 6 | 35 | Reece Grady | 17 | Stockport Mo | 15:37.87 |
| 7 | 33 | Harry Wynne-Jones | 17 | Co Milton K | 15:39.64 |
| 8 | 31 | Michael Adeney | 19 | Co Manch Aq | 15:41.50 |
| 9 | 29 | Jake Tomkins | 16 | Barnet Copt | 15:44.41 |