4.2km 225m
| Pos | No. | Name | Club/Country | Age Class | Time | Behind |
|---|---|---|---|---|---|---|
| 1st | 407 | Alastair Thomas | WCOC (GBR) | M18 | 25:31 | |
| 2nd | 411 | Daniel Spencer | WCOC (GBR) | M18 | 25:45 | +0:14 |
| 3rd | 413 | Joseph Wright | MAROC (GBR) | M18 | 27:36 | +2:05 |
| 4th | 430 | Zac Hudd | WCOC (GBR) | M18 | 29:19 | +3:48 |
| 5th= | 424 | Stanley Heap | SO (GBR) | M18 | 29:34 | +4:03 |
| 5th= | 435 | Tom Wood | ERYRI (GBR) | M18 | 29:34 | +4:03 |
| 7th | 418 | David Bunn | TVOC (GBR) | M18 | 29:36 | +4:05 |
| 8th | 433 | Alistair Chapman | MAROC (GBR) | M18 | 30:29 | +4:58 |
| 9th | 432 | Harry Fox | DEVON (GBR) | M18 | 30:40 | +5:09 |
| 10th | 420 | Felix Wilson | MAROC (GBR) | M18 | 30:45 | +5:14 |
| 11th | 438 | Elias Sørensen | Lillomarka OL (NOR) | M18 | 31:04 | +5:33 |
| 12th | 421 | Dominic Dakin | SYO (GBR) | M18 | 31:12 | +5:41 |
| 13th | 428 | Harry Scott | LOC (GBR) | M18 | 31:44 | +6:13 |
| Championship time 31:54 | ||||||
| Gold time 32:51 | ||||||
| 14th | 439 | John Getliff | MAROC (GBR) | M18 | 33:23 | +7:52 |
| 15th | 437 | Matthew Clarke | SUFFOC (GBR) | M18 | 33:44 | +8:13 |
| 16th | 443 | Ethan Tebbutt | LEI (GBR) | M18 | 34:03 | +8:32 |
| 17th | 445 | Harry McMurtrie | DEVON (GBR) | M18 | 34:29 | +8:58 |
| 18th | 423 | Ben Breeze | WCOC (GBR) | M18 | 35:36 | +10:05 |
| 19th | 427 | Thomas Howell | SN (GBR) | M18 | 35:41 | +10:10 |
| 20th | 436 | Luke Graham | MAROC (GBR) | M18 | 36:17 | +10:46 |
| 21st | 448 | William Thomas | MWOC (GBR) | M18 | 37:45 | +12:14 |
| 22nd | 459 | George Van Dam | HALO (GBR) | M18 | 37:52 | +12:21 |
| 23rd | 479 | Sam Leadley | OD (GBR) | M18 | 37:55 | +12:24 |
| 24th | 458 | Joseph Goodwin | WCOC (GBR) | M18 | 38:10 | +12:39 |
| 25th | 446 | Daniel Weaver | DEE (GBR) | M18 | 39:02 | +13:31 |
| Silver time 39:26 | ||||||
| 26th | 460 | Thomas Aspin | CLOK (GBR) | M18 | 39:35 | +14:04 |
| 27th | 467 | Evan Bowers | HH (GBR) | M18 | 40:55 | +15:24 |
| 28th | 441 | Max Bloor | INT (GBR) | M18 | 42:10 | +16:39 |
| 29th | 454 | Steven Denby | NOR (GBR) | M18 | 43:05 | +17:34 |
| 30th | 444 | Aidan McCullough | 3ROC (IRL) | M18 | 43:14 | +17:43 |
| 31st | 447 | Tim Dalheimer | IK Vikings OK (SWE) | M18 | 43:39 | +18:08 |
| 32nd | 455 | Logan McIntyre | INT (GBR) | M18 | 46:53 | +21:22 |
| 33rd | 457 | Dominic Walker | DEVON (GBR) | M18 | 49:13 | +23:42 |
| Bronze time 52:34 | ||||||
| 434 | Angus Harrington | HH (GBR) | M18 | w14 | ||
| 468 | Andrew Elwood | LVO (GBR) | M18 | m8 | ||
| 466 | Ryan Elliot | SYO (GBR) | M18 | w4 | ||