| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Stefan Krawiec | 13 | East Lothian | 4:21.85 |
| 1 | 2 | Joshua O Brien | 14 | Co Cardiff | 4:18.45 |
| 2 | 3 | William Baines | 14 | Bo Stockton | 4:16.82 |
| 3 | 4 | Tyler Melbourne-Smith | 14 | Co Liverpool | 4:14.93 |
| 4 | 5 | Liam Dawson | 14 | Nova Cent'n | 4:12.61 |
| 5 | 6 | Archie Hawkins | 14 | Thanet Swim | 4:13.95 |
| 6 | 7 | Joseph Stout | 14 | Co Salford | 4:15.09 |
| 7 | 8 | Reece Grady | 14 | Stockport Mo | 4:18.15 |
| 8 | 9 | Kaiden Welsby | 14 | Stockport Mo | 4:21.79 |
| 9 | 10 | Oscar Barlow | 14 | TauntonDeane | 4:22.16 |