| Event | Rank | Mark | By | Meet |
| G-400 | 1 | 57.57 | Wilson, Ashleigh (2015) (Minooka Community, IL) (US#88) | Illinois Top Times Championships - Class 3A(IL), 2015-03-28(#2) |
| | | National Elites above. State Elites below | | |
| G-400 | 2 | 58.66 | Brown, Daijah (2018) (Plainfield South, IL) | Illinois Top Times Championships - Class 3A(IL), 2015-03-28(#4) |
| G-400 | 3 | 59.25 | Harris, Morgan (2016) (Oswego East, IL) | Illinois Top Times Championships - Class 3A(IL), 2015-03-28(#5) |
| G-400 | 4 | 1:00.35 | Flammersfeld, Abby (2018) (Oswego East, IL) | Pete Heimsath Invitational(IL), 2015-03-07(#1) |
| G-400 | 5 | 1:02.73 | Simmons, Natajah (2015) (Oswego, IL) | Batavia Girls Quad(IL), 2015-02-27(#2) |
| G-400 | 6 | 1:03.37 | Freeman, Achante (2017) (Plainfield Central, IL) | Argo Girls Invitational(IL), 2015-03-07(#3) |
| G-400 | 7 | 1:04.30 | Callahan, Mackenzie (2017) (Minooka Community, IL) | Homewood - Flossmoor Co-Ed Invitational(IL), 2015-03-07(#5) |
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| | | See more performances for G-400 | | |
