| Event | Rank | Mark | By | Meet |
| B-5k_XC | 1 | 14:57.70 | Roberts, Paul (2016) (Lyons, CO) | Foot Locker Midwest(WI), 2015-11-28(#2) |
| B-5k_XC | 2 | 15:15.10 | Goldy, Steven (Arapahoe, CO) | Desert Twilight XC Festival(AZ), 2015-10-02(#6) |
| B-5k_XC | 3 | 15:16.00 | Green, Isaac (2017) (Monarch, CO) | Liberty Bell Invitational(CO), 2015-09-11(#1) |
| B-5k_XC | 4 | 15:16.20 | Hagen, Luc (2016) (Air Academy, CO) | Desert Twilight XC Festival(AZ), 2015-10-02(#7) |
| B-5k_XC | 5 | 15:24.50 | Raymond, Henry (2016) (Poudre, CO) | NXN Championships(OR), 2015-12-05(#13) |
| B-5k_XC | 6 | 15:26.30 | Meek, Ian (2017) (Montrose, CO) | CO 4A Region 6 Championships(CO), 2015-01-01(#1) |
| B-5k_XC | 7 | 15:29.00 | Butler, Ben (2016) (Skyview, CO) | St. Vrain Invitational(CO), 2015-09-12(#2) |
| B-5k_XC | 8 | 15:32.00 | Stack, Taylor (2016) (Salida, CO) | Tri-Peaks League Meet(CO), 2015-10-16 |
| B-5k_XC | 8 | 15:32.00 | Hornecker, Alec (2016) (Golden, CO) | CO 4A Region 1 Championships(CO), 2015-10-23(#1) |
| B-5k_XC | 10 | 15:34.20 | Hird, Bryan (2016) (Rocky Mountain, CO) | John Martin Invitational(CO), 2015-09-18(#2) |
| B-5k_XC | 11 | 15:35.70 | Lachelt, Benjamin (2016) (Durango, CO) | CO 4A Region 6 Championships(CO), 2015-01-01(#2) |
| B-5k_XC | 12 | 15:36.80 | Chandler, William (2016) (Durango, CO) | Desert Twilight XC Festival(AZ), 2015-10-02(#17) |
| B-5k_XC | 13 | 15:37.00 | Mitchem, Jake (2016) (Broomfield, CO) | Liberty Bell Invitational(CO), 2015-09-11(#2) |
| B-5k_XC | 14 | 15:38.00 | Brevig, Mason (1912) (Arapahoe, CO) | Liberty Bell Invitational(CO), 2015-09-11(#4) |
| B-5k_XC | 15 | 15:38.10 | Plantz, Jack (2016) (Telluride, CO) | CO 2A Region 4 Championships(CO), 2015-10-23(#1) |
| B-5k_XC | 16 | 15:42.98 | Moran, Kyle (2017) (Cherry Creek, CO) | Nike Portland XC(OR), 2015-09-26(#16) |
| B-5k_XC | 17 | 15:44.00 | Smith, Paxton (2016) (Mountain Vista, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#1) |
| B-5k_XC | 18 | 15:45.30 | Mcdonald, Matthew (Air Academy, CO) | Desert Twilight XC Festival(AZ), 2015-10-02(#25) |
| B-5k_XC | 19 | 15:47.00 | Dimas, Cameron (2017) (Fort Collins, CO) | CO 5A Region 4 Championships(CO), 2015-10-22(#2) |
| B-5k_XC | 19 | 15:47.00 | Norman, Tanner (2017) (The Classical Academy, CO) | CO 4A Region 2 Championships(CO), 2015-10-22(#1) |
| B-5k_XC | 21 | 15:48.00 | Dingman, Ben (2016) (Rampart, CO) | Rock Canyon Invitational(CO), 2015-09-19 |
| B-5k_XC | 22 | 15:52.00 | Romine, Joshua (2017) (Mountain Vista, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#2) |
| B-5k_XC | 23 | 15:53.00 | Thollot, Jarrett (2016) (Thompson Valley, CO) | Liberty Bell Invitational(CO), 2015-09-11(#3) |
| B-5k_XC | 24 | 15:53.10 | Turco, Nicholas (2016) (Durango, CO) | Desert Twilight XC Festival(AZ), 2015-10-02(#30) |
| B-5k_XC | 25 | 15:54.10 | Aguirre, Alexis (2017) (Battle Mountain, CO) | CO 4A Region 6 Championships(CO), 2015-01-01(#3) |
| B-5k_XC | 26 | 15:56.00 | Fu, Alex (2016) (Mountain Vista, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#3) |
| B-5k_XC | 27 | 15:56.60 | Schelir, Keaton (1) (Fossil Ridge, CO) | Front Range League Championships(CO), 2015-10-16(#2) |
| B-5k_XC | 28 | 15:57.00 | MacKay, Parker (2018) (Mountain Vista, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#4) |
| B-5k_XC | 29 | 15:57.20 | Moenning, David (2016) (Durango, CO) | Desert Twilight XC Festival(AZ), 2015-10-02(#38) |
| B-5k_XC | 30 | 15:59.00 | Scudamore, Harrison (Denver East, CO) | Liberty Bell Invitational(CO), 2015-09-11(#9) |
| B-5k_XC | 30 | 15:59.00 | Martinez, Maximilliano (2017) (Widefield, CO) | Pueblo Central Invitational(CO), 2015-09-19(#2) |
| B-5k_XC | 32 | 15:59.70 | Millett, Seamus (2016) (Durango, CO) | Desert Twilight XC Festival(AZ), 2015-10-02(#42) |
| | | National Elites above. State Elites below | | |
| B-5k_XC | 33 | 16:01.70 | Krafsur, Joseph (2016) (Fort Collins, CO) | Foot Locker Midwest(WI), 2015-11-28(#62) |
| B-5k_XC | 34 | 16:02.00 | Zarrin, Shayan (2018) (Mountain Vista, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#5) |
| B-5k_XC | 35 | 16:03.00 | Salvador, Blake (2016) (Fort Collins, CO) | Liberty Bell Invitational(CO), 2015-09-11(#11) |
| B-5k_XC | 35 | 16:03.00 | Swenson, Brandon (11) (Evergreen, CO) | CO 4A Region 1 Championships(CO), 2015-10-23(#2) |
| B-5k_XC | 37 | 16:05.00 | Currie, Ryan (2016) (Mountain Vista, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#6) |
| B-5k_XC | 38 | 16:06.00 | Hogan, Ben (Monarch, CO) | Liberty Bell Invitational(CO), 2015-09-11(#12) |
| B-5k_XC | 39 | 16:06.30 | Ko, Dylan (2017) (Fossil Ridge, CO) | John Martin Invitational(CO), 2015-09-18(#3) |
| B-5k_XC | 40 | 16:07.20 | Paschal, Ro (2016) (Mancos, CO) | CO 2A Region 4 Championships(CO), 2015-10-23(#2) |
| B-5k_XC | 41 | 16:08.00 | Rogers, Jacob (2016) (Lamar, CO) | Tri-Peaks League Meet(CO), 2015-10-16 |
| B-5k_XC | 41 | 16:08.00 | Thompson, Caleb (Douglas County, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#7) |
| B-5k_XC | 43 | 16:10.18 | Hamson, Daniel (2016) (Cherry Creek, CO) | Nike Portland XC(OR), 2015-09-26(#48) |
| B-5k_XC | 44 | 16:11.00 | Conlon, Jack (Fort Collins, CO) | CO 5A Region 4 Championships(CO), 2015-10-22(#5) |
| B-5k_XC | 45 | 16:11.50 | Helms, Jordan (2016) (Durango, CO) | Desert Twilight XC Festival(AZ), 2015-10-02(#52) |
| B-5k_XC | 46 | 16:11.90 | Such, Joel (2016) (Lyons, CO) | Foot Locker Midwest(WI), 2015-11-28(#80) |
| B-5k_XC | 47 | 16:12.00 | Theodore, Chris (Rock Canyon, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#8) |
| B-5k_XC | 48 | 16:13.00 | Kennedy, Kyle (Arapahoe, CO) | Liberty Bell Invitational(CO), 2015-09-11(#15) |
| B-5k_XC | 49 | 16:14.00 | Dykema, Brock (Silver Creek, CO) | Liberty Bell Invitational(CO), 2015-09-11(#1) |
| B-5k_XC | 49 | 16:14.00 | Hebner, Alex (Chaparral, CO) | Liberty Bell Invitational(CO), 2015-09-11(#16) |
| B-5k_XC | 49 | 16:14.00 | Scoggins, Patrick (Rangely, CO) | CO 2A Region 4 Championships(CO), 2015-10-23(#3) |
| B-5k_XC | 49 | 16:14.00 | Martinez, Hayden (Doherty, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#9) |
| B-5k_XC | 53 | 16:14.10 | Kelley, Ben (Soroco, CO) | CO 2A Region 4 Championships(CO), 2015-10-23(#4) |
| B-5k_XC | 54 | 16:15.00 | Calderon, Antonio (2016) (Fort Collins, CO) | Liberty Bell Invitational(CO), 2015-09-11(#18) |
| B-5k_XC | 54 | 16:15.00 | Hornung, Gage (Boulder, CO) | Liberty Bell Invitational(CO), 2015-09-11(#17) |
| B-5k_XC | 54 | 16:15.00 | McCabe, Connor (Rampart, CO) | Rock Canyon Invitational(CO), 2015-09-19 |
| B-5k_XC | 57 | 16:15.30 | Mackey, Parker (Mountain Vista, CO) | NXN Championships(OR), 2015-12-05(#97) |
| B-5k_XC | 58 | 16:17.00 | Romero, Jeremy (2016) (Heritage, CO) | Liberty Bell Invitational(CO), 2015-09-11(#4) |
| B-5k_XC | 58 | 16:17.00 | Delacerda, Isaiah (2017) (Alamosa, CO) | CO 3A Region 2 Championships(CO), 2015-10-22(#2) |
| B-5k_XC | 60 | 16:18.00 | Pence, Ethan (Battle Mountain, CO) | Liberty Bell Invitational(CO), 2015-09-11(#6) |
| B-5k_XC | 60 | 16:18.00 | Rudnicki, Andrew (2017) (Palmer Ridge, CO) | CO 4A Region 2 Championships(CO), 2015-10-22(#3) |
| B-5k_XC | 62 | 16:19.00 | Fedel, Nate (Ouray, CO) | CO 2A Region 4 Championships(CO), 2015-10-23(#5) |
| B-5k_XC | 62 | 16:19.00 | Vai, Nicholas (Coronado, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#12) |
| B-5k_XC | 64 | 16:20.00 | Davis, Josiah (2016) (Frontier Charter Academy, CO) | CSU Frontier Academy Invitational(CO), 2015-09-04(#2) |
| B-5k_XC | 64 | 16:20.00 | Meadows, Jeremy (2017) (Palmer Ridge, CO) | Pueblo Central Invitational(CO), 2015-09-19(#4) |
| B-5k_XC | 66 | 16:20.60 | Graff, Evan (2018) (Montrose, CO) | CO 4A Region 6 Championships(CO), 2015-01-01(#7) |
| B-5k_XC | 67 | 16:21.00 | Dennis, Austin (Chaparral, CO) | Liberty Bell Invitational(CO), 2015-09-11(#21) |
| B-5k_XC | 67 | 16:21.00 | Walth, Ben (Palmer, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#13) |
| B-5k_XC | 69 | 16:21.60 | Truettner, Aiden (2016) (Crested Butte Community, CO) | CO 2A Region 4 Championships(CO), 2015-10-23(#6) |
| B-5k_XC | 70 | 16:22.00 | Lester, Andrew (2017) (Palmer Ridge, CO) | Pueblo Central Invitational(CO), 2015-09-19(#6) |
| B-5k_XC | 70 | 16:22.00 | Riedel, Sean (Boulder, CO) | Pat Amato Classic(CO), 2015-10-09 |
| B-5k_XC | 70 | 16:22.00 | Wallace, Rylan (Cherokee Trail, CO) | Desert Twilight XC Festival(AZ), 2015-10-02(#10) |
| B-5k_XC | 70 | 16:22.00 | Hart, Weston (2017) (Mountain Vista, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#14) |
| B-5k_XC | 74 | 16:23.00 | Krafsur, Josh (Fort Collins, CO) | CO 5A Region 4 Championships(CO), 2015-10-22(#8) |
| B-5k_XC | 75 | 16:23.90 | Stafford, Kyle (Cherokee Trail, CO) | Desert Twilight XC Festival(AZ), 2015-10-02(#11) |
| B-5k_XC | 76 | 16:24.00 | Rykovich, George (Eaglecrest, CO) | Liberty Bell Invitational(CO), 2015-09-11(#22) |
| B-5k_XC | 77 | 16:25.00 | Primozich, Sam (Boulder, CO) | Pat Amato Classic(CO), 2015-10-09 |
| B-5k_XC | 78 | 16:26.00 | Simington, Logan (Thompson Valley, CO) | Liberty Bell Invitational(CO), 2015-09-11(#7) |
| B-5k_XC | 78 | 16:26.00 | Cox, Liam (2016) (Palmer Ridge, CO) | CO 4A Region 2 Championships(CO), 2015-10-22(#4) |
| B-5k_XC | 78 | 16:26.00 | Durney, Jared (Broomfield, CO) | CO 5A Region 4 Championships(CO), 2015-10-22(#11) |
| B-5k_XC | 78 | 16:26.00 | Dickinson, Luke (Rock Canyon, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#15) |
| B-5k_XC | 82 | 16:26.30 | Branch, Aiden (Eagle Valley, CO) | CO 4A Region 6 Championships(CO), 2015-01-01(#9) |
| B-5k_XC | 83 | 16:26.40 | Scott, Johnson (2017) (Legend, CO) | Rim Rock Farm XC Classic(KS), 2015-09-26(#24) |
| B-5k_XC | 84 | 16:26.50 | Borel, Jake (Battle Mountain, CO) | CO 4A Region 6 Championships(CO), 2015-01-01(#10) |
| B-5k_XC | 85 | 16:26.60 | Nelson, Bryson (Cherokee Trail, CO) | Desert Twilight XC Festival(AZ), 2015-10-02(#14) |
| B-5k_XC | 86 | 16:27.00 | Franssen, Ernie (2016) (Pomona, CO) | Liberty Bell Invitational(CO), 2015-09-11(#9) |
| B-5k_XC | 87 | 16:27.30 | Fedel, Joey (Ouray, CO) | CO 2A Region 4 Championships(CO), 2015-10-23(#7) |
| B-5k_XC | 88 | 16:27.80 | Kearns, Simon (Mancos, CO) | CO 2A Region 4 Championships(CO), 2015-10-23(#8) |
| B-5k_XC | 89 | 16:28.00 | MacDonald, Brooks (Centaurus, CO) | Liberty Bell Invitational(CO), 2015-09-11(#2) |
| B-5k_XC | 89 | 16:28.00 | Zacharias, Luke (Boulder, CO) | Liberty Bell Invitational(CO), 2015-09-11(#27) |
| B-5k_XC | 89 | 16:28.00 | Brown, Mason (Eaglecrest, CO) | Liberty Bell Invitational(CO), 2015-09-11(#25) |
| B-5k_XC | 89 | 16:28.00 | Danley, Cody (Rocky Ford, CO) | St. Vrain Invitational(CO), 2015-09-12(#4) |
| B-5k_XC | 89 | 16:28.00 | Schoep, Josh (11) (Broomfield, CO) | Pat Amato Classic(CO), 2015-10-09 |
| B-5k_XC | 89 | 16:28.00 | Steinberg, Harry (Durango, CO) | CO 4A Region 6 Championships(CO), 2015-01-01(#11) |
| B-5k_XC | 89 | 16:28.00 | Selinger, Greg (Rampart, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#16) |
| B-5k_XC | 96 | 16:29.00 | Cathcart, Bri (2011) (Rocky Mountain, CO) | Pat Amato Classic(CO), 2015-10-09 |
| B-5k_XC | 96 | 16:29.00 | Crum, Kaleb (Lamar, CO) | Tri-Peaks League Meet(CO), 2015-10-16 |
| B-5k_XC | 98 | 16:29.80 | Reilly, Franklin (Battle Mountain, CO) | CO 4A Region 6 Championships(CO), 2015-01-01(#13) |
| B-5k_XC | 99 | 16:30.00 | Burgoyne, Zachary (Mountain Vista, CO) | CO 5A Region 5 Championships(CO), 2015-10-23(#17) |
| B-5k_XC | 100 | 18:59.00 | Mitchem, Emily (2018) (Broomfield, CO) | Liberty Bell Invitational(CO), 2015-09-11(#5) |
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