EVENT 105 Open/Male 09 /Over 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 2 | Caleb Van Haren | 14 | Barrow | |
| 2 | 4 | Charlie Hall | 15 | Workington | |
| 3 | 9 | Harry McDowell | 13 | Copeland | 6:08.42 |
| 4 | 8 | Peter Dowling | 10 | Ulverston | 6:25.16 |
| 5 | 3 | Oscar Barnes | 10 | Carlisle Aq | |
| 6 | 1 | Arlo Sutton | 13 | Copeland | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Olly Swarbrick | 12 | Ulverston | 5:38.82 |
| 2 | 14 | Alastair Buis | 13 | Carlisle Aq | 5:11.97 |
| 3 | 16 | Farron Bigrigg | 14 | Cockermouth | 4:47.20 |
| 4 | 15 | Mason Stephenson | 14 | Workington | 5:09.00 |
| 5 | 12 | Kayden Smith | 13 | Ulverston | 5:26.90 |
| 6 | 10 | Connor Whetton | 15 | Cockermouth | 6:03.55 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 18 | Oliver Glaister | 14 | Workington | 4:37.90 |
| 2 | 20 | Tom Bell | 16 | Barrow | 4:30.70 |
| 3 | 22 | Jonny Fidalgo-Hull | 18 | Cockermouth | 4:23.26 |
| 4 | 21 | Fergus Bell | 17 | Ulverston | 4:26.40 |
| 5 | 19 | Adam Jones | 20 | Ulverston | 4:35.21 |
| 6 | 17 | Marley Griffiths | 16 | Ulverston | 4:42.47 |