| | Age | Grade | Athlete | Time | ST | Team | Date | Meet |
| 1. | | 12 | Michael MacMenamin | 17:06.2 | ID | Kamiah | Oct 27
| IHSAA XC Championships 2018 |
| 2. | 16 | 10 | Carson Sellers | 17:12.8 | ID | Timberline (Weippe) | Oct 27
| IHSAA XC Championships 2018 |
| 3. | | 12 | August Igielski | 17:15.5PR | ID | Logos | Oct 27
| IHSAA XC Championships 2018 |
| 4. | 16 | 10 | Alex Blum | 17:22.8 | ID | Logos | Oct 27
| IHSAA XC Championships 2018 |
| 5. | | 11 | Joe McGuigan | 17:23.0PR | ID | Nezperce | Sep 18
| Potlatch Invitational |
| 6. | | 11 | David Phillis | 17:23.5 | ID | Troy | Oct 27
| IHSAA XC Championships 2018 |
| 7. | 16 | 9 | Johnathon Ortman | 17:46.0PR | ID | Deary | Sep 18
| Potlatch Invitational |
| 8. | | 11 | Jake Hughes | 17:48.0PR | ID | Logos | Oct 27
| IHSAA XC Championships 2018 |
| 9. | | 9 | Cole Seiler | 17:48.9PR | ID | Nezperce | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 10. | | 12 | Colton Cannon | 18:07.4PR | ID | Kendrick | Oct 9
| NE 1B/2B D7 Meet (Asotin Host) |
| 11. | 14 | 9 | Solomon Howard | 18:09.0 | ID | Logos | Sep 18
| Potlatch Invitational |
| 12. | | 12 | Tanner Hibbard | 18:09.5PR | ID | Prairie | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 13. | | 12 | Rudy Christianson | 18:15.6PR | ID | Logos | Oct 27
| IHSAA XC Championships 2018 |
| 14. | | 11 | Isaac Blum | 18:16.0 | ID | Logos | Oct 6
| Inland Empire Challenge |
| 15. | | 12 | Kevin Hill | 18:18.7PR | ID | Clearwater Valley | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 16. | | 11 | Zachary Stoner | 18:19.8PR | ID | Troy | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 17. | | 9 | Wyatt Haynes | 18:29.2 | ID | Logos | Oct 27
| IHSAA XC Championships 2018 |
| 18. | | 10 | Jace Sams | 18:29.4 | ID | Kamiah | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 19. | | 9 | Theo Sentz | 18:40.0 | ID | Logos | Oct 6
| Inland Empire Challenge |
| 20. | | 12 | James Villamor | 18:51.4PR | ID | Prairie | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 21. | 15 | 10 | Preston Amerman | 18:52.4 | ID | Clearwater Valley | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 22. | | 10 | Preston Johnston | 19:07.3 | ID | Deary | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 23. | | 9 | Patrick McManus | 19:10.5PR | ID | Deary | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 24. | | 9 | Cody Stevens | 19:15.0PR | ID | Logos | Sep 18
| Potlatch Invitational |
| | | 12 | Brian Plotner | 19:15.0PR | ID | Logos | Sep 18
| Potlatch Invitational |
| 26. | | 9 | Jasper Whitling | 19:16.2 | ID | Logos | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 27. | | 12 | Devin Ross | 19:20.9PR | ID | Prairie | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 28. | | 11 | Reid Thompson | 19:23.6 | ID | Potlatch | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 29. | | 10 | Austin Hogaboam | 19:34.6 | ID | Potlatch | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 30. | 17 | 12 | Suriel De La Cruz L... | 19:35.3PR | ID | Timberline (Weippe) | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 31. | | 9 | Will Casebolt | 19:52.0 | ID | Logos | Oct 6
| Inland Empire Challenge |
| 32. | | 10 | Michael Popp | 20:01.4 | ID | Kamiah | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 33. | | 9 | Tristin Dominguez | 20:06.0PR | ID | Clearwater Valley-Kamiah | Oct 6
| Inland Empire Challenge |
| 34. | | 10 | Robert Whitney | 20:10.3PR | ID | Kamiah | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 35. | | 9 | Wyatt Wilcox | 20:11.1PR | ID | Kamiah | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 36. | | 11 | David Handel | 20:21.0 | ID | Logos | Oct 6
| Inland Empire Challenge |
| | | 10 | Ronen Wyrick | 20:21.0 | ID | Logos | Oct 6
| Inland Empire Challenge |
| 38. | | 11 | Samuel Brisbois | 20:24.4PR | ID | Kamiah | Oct 27
| IHSAA XC Championships 2018 |
| 39. | | 11 | Gabe Isaac | 20:35.0 | ID | Troy | Sep 18
| Potlatch Invitational |
| | | 9 | Wyatt Wilcox | 20:35.0PR | ID | Clearwater Valley-Kamiah | Oct 6
| Inland Empire Challenge |
| 41. | | 10 | Tristin Dominguez | 20:38.6PR | ID | Clearwater Valley | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 42. | | 10 | William Hooper | 20:40.0 | ID | Prairie | Oct 6
| Inland Empire Challenge |
| 43. | | 11 | Fisher Gray | 20:41.6PR | ID | Troy | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 44. | | 9 | John Crawford | 20:42.0 | ID | Logos | Oct 6
| Inland Empire Challenge |
| 45. | | 10 | Tyler Wemhoff | 20:42.5 | ID | Prairie | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 46. | | 11 | Brendan Noble | 20:52.0PR | ID | Troy | Oct 6
| Inland Empire Challenge |
| 47. | | 9 | Mikey Jenko | 20:52.2 | ID | Kendrick | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 48. | | 11 | Ethan Carr | 20:54.2 | ID | Deary | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 49. | | 9 | Seth Adams | 20:56.5PR | ID | Troy | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 50. | | 12 | Skylar Wright | 21:01.4 | ID | Troy | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 51. | | 10 | Ben Veith | 21:19.0 | ID | Potlatch | Oct 6
| Inland Empire Challenge |
| 52. | | 11 | Dillan Koopman | 21:19.4PR | ID | Kendrick | Oct 9
| NE 1B/2B D7 Meet (Asotin Host) |
| 53. | | 11 | Daniel Leman | 21:22.9PR | ID | Troy | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 54. | | 9 | William Evans | 21:24.0PR | ID | Logos | Oct 6
| Inland Empire Challenge |
| 55. | | 10 | Richard Crawford | 21:32.0 | ID | Logos | Oct 6
| Inland Empire Challenge |
| 56. | 16 | 10 | Justin Lockett | 21:38.4 | ID | Prairie | Oct 27
| IHSAA XC Championships 2018 |
| 57. | | 9 | Dustyn McInerney | 21:40.6PR | ID | Deary | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 58. | | 11 | Kaden Mercer | 21:54.0 | ID | Clearwater Valley-Kamiah | Sep 18
| Potlatch Invitational |
| | | 11 | Derek Loewen | 21:54.0 | ID | Clearwater Valley-Kamiah | Sep 21
| Bob Weisel Moscow Invitational |
| 60. | | 9 | Stuart Larson | 22:03.0 | ID | Potlatch | Oct 6
| Inland Empire Challenge |
| 61. | | 11 | Jonas Oatman | 22:13.7 | ID | Kamiah | Oct 27
| IHSAA XC Championships 2018 |
| 62. | | 10 | Tommy Skinner | 22:21.1 | ID | Potlatch | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 63. | | 9 | Isaiah Raasch | 22:24.8 | ID | Troy | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 64. | | 9 | Samuel Stoner | 22:32.1 | ID | Troy | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 65. | | 9 | Jacob Skiles | 22:38.0PR | ID | Kendrick | Sep 18
| Potlatch Invitational |
| 66. | | 9 | Kenny Kline | 22:48.0 | ID | Logos | Oct 6
| Inland Empire Challenge |
| 67. | | 9 | Dominic Brown | 22:52.0PR | ID | Potlatch | Sep 18
| Potlatch Invitational |
| 68. | | 11 | Kolby Chamberlin | 22:56.3 | ID | Kendrick | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 69. | | 9 | Nakiyah Anderson | 23:14.0PR | ID | Clearwater Valley-Kamiah | Sep 21
| Bob Weisel Moscow Invitational |
| 70. | 16 | 11 | Steffen Riley | 23:16.0 | ID | Potlatch | Oct 6
| Inland Empire Challenge |
| 71. | | 9 | Alex McElroy | 23:32.6PR | ID | Prairie | Oct 27
| IHSAA XC Championships 2018 |
| 72. | | 10 | Jared Cronce | 23:43.0 | ID | Nezperce | Oct 2
| CV-Kamiah Invitational |
| 73. | | 12 | Gadi Edwards | 23:48.4PR | ID | Logos | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 74. | | 12 | Talis Meyer | 23:53.0PR | ID | Logos | Oct 6
| Inland Empire Challenge |
| 75. | | 10 | Teddy Edgar | 24:25.0PR | ID | Deary | Sep 18
| Potlatch Invitational |
| 76. | | 9 | Austin Barber | 25:15.0PR | ID | Troy | Sep 21
| Bob Weisel Moscow Invitational |
| 77. | | 9 | Logan Mossman | 25:32.7 | ID | Clearwater Valley | Oct 18
| District I&II 4A/5A, 1A/2A Championships |
| 78. | | 10 | Haydn Blacker | 26:00.0 | ID | Potlatch | Sep 18
| Potlatch Invitational |
| 79. | | 9 | Logan Mossman | 26:01.2 | ID | Clearwater Valley-Kamiah | Oct 11
| Troy Invite |
| 80. | | 12 | Ryan Arnzen | 26:33.2PR | ID | Prairie | Oct 27
| IHSAA XC Championships 2018 |
| 81. | 16 | 11 | Timothy Davy | 26:40.0PR | ID | Nezperce | Oct 6
| Inland Empire Challenge |
| 82. | | 9 | Jack Wilkins | 27:11.0PR | ID | Clearwater Valley-Kamiah | Oct 6
| Inland Empire Challenge |
| 83. | | 9 | Brady Skinner | 27:56.0PR | ID | Potlatch | Oct 6
| Inland Empire Challenge |
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