EVENT 602 Men Open 800m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 2 | V BRAMLEY - HOWELL | 13 | Leic Peng | 12:05.12 |
| 2 | 4 | Frank BACON | 13 | Braunstone | 11:42.01 |
| 3 | 6 | James HOCKEY | 14 | Coalville | 11:01.96 |
| 4 | 8 | Freddie BURDETT | 13 | Leic Peng | 10:56.43 |
| 5 | 7 | Oliver LOND | 15 | Hinckley | 10:57.13 |
| 6 | 5 | Alex BARTLAM | 13 | Braunstone | 11:27.78 |
| 7 | 3 | Ryan HEJRATY | 13 | Leicester Ne | 11:45.80 |
| 8 | 1 | Felix JARVIS | 13 | Loughborough | 12:07.38 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 10 | Emerson-Blu GUPWELL | 13 | Braunstone | 10:34.00 |
| 2 | 12 | Joshua DOWDALL | 16 | Loughborough | 10:22.01 |
| 3 | 16 | Matthew LONGMAN | 16 | Loughborough | 10:03.05 |
| 4 | 18 | Oliver DAVIES | 14 | Leic Peng | 9:53.43 |
| 5 | 17 | Harrison BYWATER | 16 | Loughborough | 9:56.29 |
| 6 | 15 | James GOODWIN | 18 | OadbyWigston | 10:05.53 |
| 7 | 11 | Oliver BELCHER | 15 | Coalville | 10:29.65 |
| 8 | 9 | Kenny SMITH | 14 | Leic Sharks | 10:51.37 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 20 | Thomas BLACKLAWS | 15 | Leic Sharks | 9:32.46 |
| 2 | 22 | Ethan FORD | 16 | Braunstone | 9:15.83 |
| 3 | 24 | Finlay GIBSON | 15 | Loughborough | 9:03.21 |
| 4 | 26 | George MOORE | 17 | Hinckley | 8:45.85 |
| 5 | 25 | Daniel HARRIS | 16 | Coalville | 8:55.58 |
| 6 | 23 | James LAKE | 16 | Loughborough | 9:11.50 |
| 7 | 21 | Lewis FITCH | 16 | Braunstone | 9:16.95 |
| 8 | 19 | William OXLEY | 13 | Braunstone | 9:53.20 |