3.9km 20m
| Pos | No. | Name | Club/Country | Age Class | Time | Behind |
|---|---|---|---|---|---|---|
| 1st | 407 | Alastair Thomas | WCOC (GBR) | M18 | 14:51 | |
| 2nd | 411 | Daniel Spencer | WCOC (GBR) | M18 | 14:57 | +0:06 |
| 3rd | 418 | David Bunn | TVOC (GBR) | M18 | 15:33 | +0:42 |
| 4th | 420 | Felix Wilson | MAROC (GBR) | M18 | 15:44 | +0:53 |
| 5th | 434 | Angus Harrington | HH (GBR) | M18 | 15:57 | +1:06 |
| 6th | 438 | Elias Sørensen | Lillomarka OL (NOR) | M18 | 15:58 | +1:07 |
| 7th | 435 | Tom Wood | ERYRI (GBR) | M18 | 16:04 | +1:13 |
| 8th | 432 | Harry Fox | DEVON (GBR) | M18 | 16:07 | +1:16 |
| 9th | 413 | Joseph Wright | MAROC (GBR) | M18 | 16:16 | +1:25 |
| 10th | 424 | Stanley Heap | SO (GBR) | M18 | 16:48 | +1:57 |
| 11th | 441 | Max Bloor | INT (GBR) | M18 | 17:02 | +2:11 |
| 12th | 421 | Dominic Dakin | SYO (GBR) | M18 | 17:03 | +2:12 |
| 13th | 454 | Steven Denby | NOR (GBR) | M18 | 17:23 | +2:32 |
| 14th | 446 | Daniel Weaver | DEE (GBR) | M18 | 17:29 | +2:38 |
| 15th | 487 | Ben Brown | ESOC (GBR) | M18 | 17:36 | +2:45 |
| 16th | 444 | Aidan McCullough | 3ROC (IRL) | M18 | 17:52 | +3:01 |
| 17th | 427 | Thomas Howell | SN (GBR) | M18 | 17:59 | +3:08 |
| 18th | 436 | Luke Graham | MAROC (GBR) | M18 | 18:00 | +3:09 |
| 19th | 467 | Evan Bowers | HH (GBR) | M18 | 18:05 | +3:14 |
| 20th | 477 | Reuben Vasey | DEVON (GBR) | M18 | 18:08 | +3:17 |
| 21st | 433 | Alistair Chapman | MAROC (GBR) | M18 | 18:10 | +3:19 |
| 22nd | 472 | Alfie Bullus | OD (GBR) | M18 | 18:15 | +3:24 |
| 23rd | 443 | Ethan Tebbutt | LEI (GBR) | M18 | 18:16 | +3:25 |
| 24th | 439 | John Getliff | MAROC (GBR) | M18 | 18:17 | +3:26 |
| 25th | 448 | William Thomas | MWOC (GBR) | M18 | 18:24 | +3:33 |
| 26th | 460 | Thomas Aspin | CLOK (GBR) | M18 | 18:29 | +3:38 |
| Championship time 18:34 | ||||||
| 27th | 437 | Matthew Clarke | SUFFOC (GBR) | M18 | 18:47 | +3:56 |
| 28th | 423 | Ben Breeze | WCOC (GBR) | M18 | 18:49 | +3:58 |
| 29th | 457 | Dominic Walker | DEVON (GBR) | M18 | 18:51 | +4:00 |
| Gold time 18:54 | ||||||
| 30th | 466 | Ryan Elliot | SYO (GBR) | M18 | 19:00 | +4:09 |
| 31st | 459 | George Van Dam | HALO (GBR) | M18 | 19:09 | +4:18 |
| 32nd | 483 | Ben Stevens | DEVON (GBR) | M18 | 19:16 | +4:25 |
| 33rd | 491 | Quinlan Silk | SWOC (GBR) | M18 | 19:19 | +4:28 |
| 34th | 479 | Sam Leadley | OD (GBR) | M18 | 19:46 | +4:55 |
| 35th | 473 | James McCann | MDOC (GBR) | M18 | 19:49 | +4:58 |
| 36th | 486 | Ben Goodwin | WCOC (GBR) | M18 | 19:55 | +5:04 |
| 37th | 488 | Sebastian Mobus | SYO (GBR) | M18 | 20:01 | +5:10 |
| 38th | 494 | Thomas Bartram | NOR (GBR) | M18 | 20:15 | +5:24 |
| 39th | 496 | Peter Watson | NGOC (GBR) | M18 | 20:24 | +5:33 |
| 40th | 485 | Alasdair Raynor | INVOC (GBR) | M18 | 20:26 | +5:35 |
| 41st | 458 | Joseph Goodwin | WCOC (GBR) | M18 | 20:48 | +5:57 |
| 42nd | 447 | Tim Dalheimer | IK Vikings OK (SWE) | M18 | 21:32 | +6:41 |
| 43rd | 492 | Egil Frydenlund | IF Sturla (NOR) | M18 | 21:51 | +7:00 |
| 44th | 482 | Josh M'Caw | HH (GBR) | M18 | 22:13 | +7:22 |
| Silver time 22:41 | ||||||
| 45th | 428 | Harry Scott | LOC (GBR) | M18 | 23:48 | +8:57 |
| 46th | 478 | Daniel Joyce | CNOC (IRL) | M18 | 24:09 | +9:18 |
| Bronze time 30:14 | ||||||
| 47th | 493 | James Condon | DEVON (GBR) | M18 | 42:10 | +27:19 |
| 48th | 468 | Andrew Elwood | LVO (GBR) | M18 | 148:48 | +133:57 |
| 430 | Zac Hudd | WCOC (GBR) | M18 | w20 | ||
| 445 | Harry McMurtrie | DEVON (GBR) | M18 | m21 | ||
| 484 | Samuel Leitch | SO (GBR) | M18 | w18 | ||