| | Age | Grade | Athlete | Time | ST | Team | Date | Meet |
| 1. | 16 | 11 | Andrew Luce | 13:57.0 | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 2. | 18 | 12 | Finley Bell | 14:48.0PR | WA | Mount Baker | Sep 22
| NWC: Burlington, Mt. Baker, Nooksack @ Sehome |
| 3. | | 11 | Jorey Johnson | 15:00.0PR | WA | Mount Baker | Oct 14
| 2021 Lake Lap Invite |
| 4. | | 9 | Nolan Jacoby | 15:18.0 | WA | Meridian (WA) | Oct 14
| 2021 Lake Lap Invite |
| 5. | | 10 | Cameron Saunders | 15:28.0PR | WA | Blaine | Oct 14
| 2021 Lake Lap Invite |
| 6. | 15 | 10 | Jackson Miller | 15:34.0 | WA | Meridian (WA) | Oct 14
| 2021 Lake Lap Invite |
| 7. | 15 | 10 | Dane Beishline | 15:36.0 | WA | Meridian (WA) | Oct 14
| 2021 Lake Lap Invite |
| 8. | 15 | 9 | Wyatt Freeman | 15:42.0 | WA | Mount Baker | Oct 14
| 2021 Lake Lap Invite |
| 9. | | 11 | Blake VanWeerdhuize... | 15:58.0PR | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 10. | | 10 | Daniel Roosma | 16:33.0PR | WA | Nooksack Valley | Sep 22
| NWC: Burlington, Mt. Baker, Nooksack @ Sehome |
| 11. | | 12 | Jack Cheatham | 16:38.4 | WA | Blaine | Oct 14
| 2021 Lake Lap Invite |
| 12. | | 10 | Gavin Allen | 16:38.8PR | WA | Meridian (WA) | Oct 14
| 2021 Lake Lap Invite |
| 13. | | 12 | Connor Hettinga | 16:44.0 | WA | Blaine | Oct 14
| 2021 Lake Lap Invite |
| 14. | 14 | 9 | Palmer Detta | 16:48.0 | WA | Mount Baker | Sep 22
| NWC: Burlington, Mt. Baker, Nooksack @ Sehome |
| 15. | | 12 | Oliver Brown | 16:57.0PR | WA | Meridian (WA) | Oct 14
| 2021 Lake Lap Invite |
| 16. | | 10 | Kyle Klander | 16:59.0PR | WA | Nooksack Valley | Sep 22
| NWC: Burlington, Mt. Baker, Nooksack @ Sehome |
| 17. | | 9 | Jack Anderson | 17:00.0PR | WA | Meridian (WA) | Oct 14
| 2021 Lake Lap Invite |
| 18. | | 12 | Daniel Hofbauer | 17:18.0PR | WA | Meridian (WA) | Oct 14
| 2021 Lake Lap Invite |
| 19. | | 10 | Isaiah Buckley | 17:27.0 | WA | Nooksack Valley | Sep 22
| NWC: Burlington, Mt. Baker, Nooksack @ Sehome |
| 20. | | 10 | Levi Zylstra | 17:36.1 | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 21. | | 10 | Johann Veltkamp | 17:40.0PR | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 22. | 15 | 9 | Cameron Scott | 17:55.0 | WA | Mount Baker | Oct 14
| 2021 Lake Lap Invite |
| 23. | | 12 | Preston Bushman | 17:56.0PR | WA | Blaine | Oct 14
| 2021 Lake Lap Invite |
| 24. | | 9 | Tucker Greene | 17:57.3 | WA | Blaine | Oct 14
| 2021 Lake Lap Invite |
| 25. | | 11 | Tristan Margeson | 18:09.0 | WA | Meridian (WA) | Oct 14
| 2021 Lake Lap Invite |
| 26. | | 11 | Gus Rikard | 18:20.0PR | WA | Mount Baker | Oct 14
| 2021 Lake Lap Invite |
| 27. | | 10 | Kale Davis | 18:22.8PR | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 28. | | 11 | Justice Gauf | 18:23.0PR | WA | Mount Baker | Sep 22
| NWC: Burlington, Mt. Baker, Nooksack @ Sehome |
| 29. | | 12 | Landon Rische | 18:28.0 | WA | Meridian (WA) | Oct 14
| 2021 Lake Lap Invite |
| 30. | | 12 | Michael Bender | 18:29.0 | WA | Meridian (WA) | Oct 14
| 2021 Lake Lap Invite |
| 31. | 18 | 12 | Collin Favro | 18:43.0PR | WA | Mount Baker | Oct 14
| 2021 Lake Lap Invite |
| 32. | | 10 | Ethan Morris | 18:52.0 | WA | Nooksack Valley | Sep 22
| NWC: Burlington, Mt. Baker, Nooksack @ Sehome |
| 33. | | 11 | Brady Manske | 18:53.0PR | WA | Nooksack Valley | Sep 22
| NWC: Burlington, Mt. Baker, Nooksack @ Sehome |
| 34. | | 10 | Alex Smith | 19:00.0 | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 35. | | 9 | Ian Tuski | 19:01.0 | WA | Blaine | Oct 14
| 2021 Lake Lap Invite |
| 36. | | 9 | Nolen Atkins | 19:32.5PR | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 37. | | 9 | Owen Woodworth | 19:43.0 | WA | Blaine | Oct 14
| 2021 Lake Lap Invite |
| 38. | | 9 | Ben Duersch | 20:11.0 | WA | Meridian (WA) | Oct 14
| 2021 Lake Lap Invite |
| 39. | | 10 | Ely Mager | 20:29.3PR | WA | Blaine | Oct 14
| 2021 Lake Lap Invite |
| 40. | | 9 | Andrew Sebens | 20:53.6PR | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 41. | | 9 | Kaieden Williams | 21:08.0PR | WA | Nooksack Valley | Sep 22
| NWC: Burlington, Mt. Baker, Nooksack @ Sehome |
| 42. | | 11 | Edgar Lillio | 21:10.0PR | WA | Nooksack Valley | Sep 22
| NWC: Burlington, Mt. Baker, Nooksack @ Sehome |
| 43. | | 9 | Moses Meyer | 21:56.0PR | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 44. | | 9 | Kaleb Dzwowa | 22:07.0PR | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 45. | | 9 | Dylan Bishop | 22:08.0 | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 46. | | 9 | Caleb Slofstra | 22:57.0PR | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 47. | | 9 | Jude VanderGiessen | 23:04.0 | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 48. | | 9 | Peyton Wagenaar | 23:07.0PR | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 49. | | 12 | David Sobba | 23:25.0PR | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 50. | | 9 | Joshuah Golliher | 25:23.0PR | WA | Nooksack Valley | Sep 22
| NWC: Burlington, Mt. Baker, Nooksack @ Sehome |
| 51. | | 9 | Larson Rische | 27:00.0 | WA | Lynden Christian | Oct 14
| 2021 Lake Lap Invite |
| 52. | 15 | 10 | Jason Wingerter | 27:24.0PR | WA | Mount Baker | Sep 22
| NWC: Burlington, Mt. Baker, Nooksack @ Sehome |