| Event | Rank | Mark | By | Meet |
| G-300H | 1 | 42.21 | Gilbertson, Zoe (2017) (Mountain Range, CO) (US#29) | CO 5A State Meet(CO), 2015-05-16(#1) |
| G-300H | 2 | 42.44 | Lester, Carly (2015) (Rocky Mountain, CO) (US#36) | Pomona Invitational(CO), 2015-04-11(#1) |
| G-300H | 3 | 43.36 | Rosman, Linnea (2016) (Poudre, CO) (US#98) | CO 5A State Meet(CO), 2015-05-16(#3) |
| G-300H | 4 | 43.90 | Terrell, Tianna (2016) (Rampart, CO) | CO 5A State Meet(CO), 2015-05-16(#3) |
| G-300H | 5 | 43.91 | Howie, Mackenzie (2015) (Pine Creek, CO) | John Tate Challenge Cup(CO), 2015-04-11(#1) |
| G-300H | 6 | 44.10 | Fetters, Kela (2016) (Niwot, CO) | CO 4A State Meet(CO), 2015-05-16(#1) |
| G-300H | 7 | 44.12 | Fidelak, Mackenzie (2018) (Niwot, CO) | CO 4A State Meet(CO), 2015-05-16(#1) |
| G-300H | 8 | 44.15 | Yocum, Sarah (2017) (Faith Christian, CO) | CO 3A State Meet(CO), 2015-05-16(#1) |
| G-300H | 9 | 44.49 | Brown, Marlee (2016) (Palmer, CO) | CO 5A State Meet(CO), 2015-05-16(#5) |
| | | National Elites above. State Elites below | | |
| G-300H | 10 | 44.70 | Burton, Jordan (2015) (Mountain Vista, CO) | CO 5A State Meet(CO), 2015-05-16(#7) |
| G-300H | 10 | 44.70 | Hoffman, Michaela (2015) (Fruita Monument, CO) | CO 5A State Meet(CO), 2015-05-16(#5) |
| G-300H | 12 | 44.83 | Zurn, Cassidy (2015) (Thunder Ridge, CO) | CO 5A State Meet(CO), 2015-05-16(#6) |
| G-300H | 13 | 44.92 | Lanskey, Jenna (2015) (Chaparral, CO) | Continental League Championships(CO), 2015-05-09(#1) |
| G-300H | 14 | 45.00 | Grace, Abi (2015) (Montrose, CO) | CO 4A State Meet(CO), 2015-05-16(#3) |
| G-300H | 15 | 45.11 | Davis, Kylie (2018) (Regis Jesuit, CO) | CO 5A State Meet(CO), 2015-05-16(#9) |
| G-300H | 16 | 45.32 | Mcmurrain, Lilly (2015) (Battle Mountain, CO) | CO 4A State Meet(CO), 2015-05-16(#5) |
| G-300H | 17 | 45.38 | Sharon, Bailey (2016) (Green Mountain, CO) | CO 4A State Meet(CO), 2015-05-16(#4) |
| G-300H | 18 | 45.48 | Buttrick, Kacey (2015) (South Park, CO) | CO 2A State Meet(CO), 2015-05-16(#1) |
| G-300H | 19 | 45.49 | Larson, Kendra (2015) (Thompson Valley, CO) | Mullen Runners Roost Invitational(CO), 2015-04-11(#2) |
| G-300H | 20 | 45.51 | Calabrese, Izzy (2015) (Battle Mountain, CO) | CO 4A State Meet(CO), 2015-05-16(#7) |
| G-300H | 21 | 45.52 | Valko, Alyssa (2016) (Wray, CO) | CO 2A State Meet(CO), 2015-05-16(#2) |
| G-300H | 22 | 45.53 | Calabrese, Sofia (2015) (Battle Mountain, CO) | CO 4A State Meet(CO), 2015-05-16(#6) |
| G-300H | 23 | 45.54 | Krusoe, Morgan (2016) (Highlands Ranch, CO) | CO 5A State Meet(CO), 2015-05-16(#11) |
| G-300H | 24 | 45.56 | Lauder, Anne (2015) (Evergreen, CO) | CO 4A State Meet(CO), 2015-05-16(#8) |
| G-300H | 25 | 45.61 | Smith, Katherine (Legend, CO) | Continental League Championships(CO), 2015-05-09(#2) |
| G-300H | 26 | 45.68 | Finn, Taylor (2016) (Manitou Springs, CO) | CO 3A State Meet(CO), 2015-05-16(#2) |
| G-300H | 27 | 45.73 | Andrews, Amanda (2015) (Cherokee Trail, CO) | CO 5A State Meet(CO), 2015-05-16(#12) |
| G-300H | 28 | 45.75 | Harris, Claire (2015) (Lakewood, CO) | CO 5A State Meet(CO), 2015-05-16(#13) |
| G-300H | 29 | 45.80 | Menegatti, Maleigha (2018) (Pueblo West, CO) | CO 4A State Meet(CO), 2015-05-16(#10) |
| G-300H | 29 | 45.80 | Beach, Allee (2016) (Platte Valley, CO) | CO 3A State Meet(CO), 2015-05-16(#3) |
| G-300H | 31 | 46.04 | Enderle, Elinor (2017) (Canon City, CO) | CO 4A State Meet(CO), 2015-05-16(#11) |
| G-300H | 32 | 46.18 | White, Erika (2016) (Brighton, CO) | CO 5A State Meet(CO), 2015-05-16(#14) |
| G-300H | 33 | 46.33 | Wilson, Julyah (2018) (Overland, CO) | CO 5A State Meet(CO), 2015-05-16(#15) |
| G-300H | 34 | 46.36 | Smith, Delaney (2018) (Cherry Creek, CO) | Dakota Ridge Invitational(CO), 2015-04-18(#1) |
| G-300H | 35 | 46.45 | Anderson, Aleksandra (2016) (Prairie View, CO) | CO 5A State Meet(CO), 2015-05-16(#16) |
| G-300H | 36 | 46.51 | Ambuul, Teresa (The Classical Academy, CO) | Colorado Springs Metro League Championships(CO), 2015-05-07(#2) |
| G-300H | 37 | 46.52 | Hall, Julia (2016) (Arapahoe, CO) | Pomona Invitational(CO), 2015-04-11(#4) |
| G-300H | 38 | 46.59 | Brown, Kennede (2017) (Grandview, CO) | Pomona Invitational(CO), 2015-04-11(#4) |
| G-300H | 39 | 46.74 | Weinmaster, Hannah (2017) (Loveland, CO) | Front Range League Championships(CO), 2015-05-02(#4) |
| G-300H | 40 | 46.76 | Carlson, Hannah (2018) (Arapahoe, CO) | Centennial League Championships(CO), 2015-05-09(#1) |
| G-300H | 41 | 46.85 | Kellum, Mallory (2016) (Fossil Ridge, CO) | Pomona Invitational(CO), 2015-04-11(#5) |
| G-300H | 42 | 46.96 | Montoya, Lexi (2015) (Glenwood Springs, CO) | Dakota Ridge Invitational(CO), 2015-04-18(#3) |
| G-300H | 43 | 46.99 | Bowles, Amber (2016) (Coal Ridge, CO) | CO 3A State Meet(CO), 2015-05-16(#4) |
| G-300H | 44 | 47.02 | Rigsby, Kylyn (2017) (Grand Valley, CO) | CO 3A State Meet(CO), 2015-05-16(#5) |
| G-300H | 45 | 47.04 | Doublin, Khayla (2015) (Denver East, CO) | Cherry Creek/Grandview Invitational(CO), 2015-05-02(#4) |
| G-300H | 46 | 47.10 | Hardman, Bailey (Thunderridge, CO) | Continental League Championships(CO), 2015-05-09(#5) |
| G-300H | 47 | 47.14 | Coombe, Victoria (2015) (Eaglecrest, CO) | Pomona Invitational(CO), 2015-04-11(#6) |
| G-300H | 47 | 47.14 | Frieden, Audra (2018) (The Classical Academy, CO) | Colorado Springs Metro League Championships(CO), 2015-05-07(#3) |
| G-300H | 49 | 47.19 | Jones, Heather (2015) (Fossil Ridge, CO) | Front Range League Championships(CO), 2015-05-02(#6) |
| G-300H | 50 | 47.20 | Mccowen, Mary (2017) (Cheyenne Mountain, CO) | Dakota Ridge Invitational(CO), 2015-04-18(#4) |
| G-300H | 51 | 47.24 | Appel, Kris (2015) (Longmont, CO) | Boulder County Championships(CO), 2015-04-21(#2) |
| G-300H | 52 | 47.37 | Cordova, Audrey (2016) (Heritage, CO) | Liberty Bell Invitational(CO), 2015-04-25(#7) |
| G-300H | 53 | 47.43 | Setterberg, Carly (2015) (Glenwood Springs, CO) | Dakota Ridge Invitational(CO), 2015-04-18(#5) |
| G-300H | 54 | 47.53 | Simms, Lauren (2015) (Lyons, CO) | Longmont Invitational(CO), 2015-03-28(#2) |
| G-300H | 55 | 47.61 | Mcgee, Abi Grace (2015) (Montrose, CO) | Frank Woodburn Invitational(CO), 2015-04-04(#2) |
| G-300H | 56 | 47.65 | Hitchcock, Brianna (2017) (Longmont, CO) | Boulder County Championships(CO), 2015-04-21(#3) |
| G-300H | 57 | 47.72 | Spykstra, Anna (2015) (Lutheran, CO) | CO 3A State Meet(CO), 2015-05-16(#5) |
| G-300H | 58 | 47.76 | Crabb, Charise (2017) (Eagle Valley, CO) | Mullen Runners Roost Invitational(CO), 2015-04-11(#3) |
| G-300H | 59 | 47.91 | Olssen, Vendela (Fort Collins, CO) | Front Range League Championships(CO), 2015-05-02(#7) |
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