| Event | Rank | Mark | By | Meet |
| G-300H | 1 | 42.94 | Dorsey, Miyah (2015) (Belleville East, IL) (US#67) | IL 3A Girls State Finals(IL), 2015-05-23(#1) |
| G-300H | 2 | 43.78 | Brown, Lajarvia (2016) (Alton, IL) | Southwest Conference Girls Meet(IL), 2015-05-06(#2) |
| | | National Elites above. State Elites below | | |
| G-300H | 3 | 45.74 | Stanley, Rokelle (2018) (East St. Louis-Senior, IL) | Southwest Conference Girls Meet(IL), 2015-05-06(#3) |
| G-300H | 4 | 45.81 | Keltee, Lajeanai (2016) (East St. Louis-Senior, IL) | IL 3A Girls State Prelims(IL), 2015-05-22(#11) |
| G-300H | 5 | 47.07 | Clark, Fonda (2015) (Granite City, IL) | IL 3A O'Fallon Girls Sectional(IL), 2015-05-15(#9) |
| G-300H | 6 | 48.12 | Campbell, Dejah (2017) (Belleville West, IL) | Collinsville Girls Invitational(IL), 2015-05-01(#4) |
| G-300H | 7 | 48.21 | Ryan, Mackenzie (2017) (O'Fallon, IL) | Southwest Conference Girls Meet(IL), 2015-05-06(#6) |
| G-300H | 8 | 48.24 | Lee, Heather (2015) (O'Fallon, IL) | Collinsville Girls Invitational(IL), 2015-05-01(#5) |
| G-300H | 9 | 48.64 | Knight, Kimbreon (2017) (Alton, IL) | Alton Girls Invitational(IL), 2015-04-23(#5) |
| G-300H | 10 | 48.74 | Harris, Autumn (2018) (Edwardsville, IL) | Edwardsville Girls Tiger Relays(IL), 2015-04-15(#6) |
| G-300H | 11 | 49.57 | Davis, Natasha (2018) (Edwardsville, IL) | Collinsville Girls Invitational(IL), 2015-05-01(#9) |
| G-300H | 12 | 49.63 | Bornnard, Tanijah (2017) (O'Fallon, IL) | O'Fallon Girls Invitational(IL), 2015-04-17(#5) |
| G-300H | 13 | 49.90 | Reese, Kelly (2018) (East St. Louis-Senior, IL) | Southwest Conference Girls Meet(IL), 2015-05-06(#1) |
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| | | See more performances for G-300H | | |
