| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| G-400 | 1 | 57.63 | Christensen, Siri (2016) (Natrona County, WY) | WY Class 4A State Meet(WY), 2015-05-23(#1) |
| G-400 | 2 | 57.87 | Moodry, Kelly (2018) (Campbell County, WY) | WY Class 4A State Meet(WY), 2015-05-23(#2) |
| G-400 | 3 | 57.96 | Farnham, Phoenix (2015) (Laramie, WY) | WY Class 4A State Meet(WY), 2015-05-23(#3) |
| G-400 | 4 | 58.39 | Dewey, Andri (2018) (Green River, WY) | WY Class 4A State Meet(WY), 2015-05-23(#4) |
| G-400 | 5 | 58.75 | Mitchell, LeeAnna (2016) (Tongue River, WY) | WY Class 2A State Meet(WY), 2015-05-23(#1) |
| G-400 | 6 | 59.20 | Barnes, Kaitlin (2017) (Natrona County, WY) | WY Class 4A State Meet(WY), 2015-05-23(#5) |
| G-400 | 7 | 59.32 | Kay, Julia (2018) (Powell, WY) | WY Class 3A State Meet(WY), 2015-05-23(#1) |
| G-400 | 8 | 59.55 | Phillips, Savannah (2017) (Cokeville, WY) | BYU Invitational(UT), 2015-05-02(#3) |
| G-400 | 9 | 59.69 | Battershell, Rachel (2018) (Wheatland, WY) | WY Class 3A State Meet(WY), 2015-05-23(#2) |
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| | | See more performances for G-400 | | |
