3.425km 185m
| Pos | No. | Name | Club/Country | Age Class | Time | Behind |
|---|---|---|---|---|---|---|
| Championship time 25:30 | ||||||
| 1st | 1770 | Ben Goodwin | WCOC (GBR) | M18 | 25:44 | |
| Gold time 26:48 | ||||||
| 2nd | 2410 | Sebastian Mobus | SYO (GBR) | M18 | 28:19 | +2:35 |
| 3rd | 3136 | Reuben Vasey | DEVON (GBR) | M18 | 29:23 | +3:39 |
| 4th | 1245 | Ben Brown | ESOC (GBR) | M18 | 30:02 | +4:18 |
| 5th | 2891 | Quinlan Silk | SWOC (GBR) | M18 | 30:03 | +4:19 |
| 6th | 2437 | Louis Morris | WCOC (GBR) | M18 | 30:46 | +5:02 |
| 7th | 2348 | James McCann | MDOC (GBR) | M18 | 31:17 | +5:33 |
| Silver time 32:09 | ||||||
| 8th | 2514 | Alex O'Donovan | LOC (GBR) | M18 | 32:35 | +6:51 |
| 9th | 1266 | Alfie Bullus | OD (GBR) | M18 | 32:43 | +6:59 |
| 10th | 2343 | Josh M'Caw | HH (GBR) | M18 | 35:22 | +9:38 |
| 11th | 2230 | Alasdair Lilley | ECKO (GBR) | M18 | 35:24 | +9:40 |
| 12th | 1414 | James Condon | DEVON (GBR) | M18 | 35:45 | +10:01 |
| 13th | 2712 | Alasdair Raynor | INVOC (GBR) | M18 | 37:33 | +11:49 |
| 14th= | 2208 | Samuel Leitch | SO (GBR) | M18 | 38:40 | +12:56 |
| 14th= | 2880 | Ewan Shearer | ECKO (GBR) | M18 | 38:40 | +12:56 |
| 16th | 2783 | Matthew Rochester | CLARO (GBR) | M18 | 39:53 | +14:09 |
| Bronze time 42:52 | ||||||
| 17th | 1372 | John Cherry | OD (GBR) | M18 | 47:21 | +21:37 |
| 18th | 1109 | Thomas Bartram | NOR (GBR) | M18 | 58:11 | +32:27 |
| 2978 | Ben Stevens | DEVON (GBR) | M18 | w3 | ||