| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| G-400 | 1 | 56.59 | Stennis, Charlyncia (2016) (Bolingbrook, IL) | AAU JO Region 13 Qualifier(IL), 2015-07-05(#4) |
| G-400 | 2 | 56.73 | Bax, Deven (2015) (Lincoln-Way West, IL) | IL 2A Girls State Prelims(IL), 2015-05-22(#4) |
| G-400 | 3 | 57.34 | Smith, Kameesha (2017) (Thornwood, IL) | IL 3A Girls State Finals(IL), 2015-05-23(#6) |
| G-400 | 4 | 58.16 | Wallace, Kyndall (2016) (Lincoln-Way East, IL) | SWSC-Blue Girls Conference Meet(IL), 2015-05-07(#2) |
| G-400 | 5 | 58.36 | Ayoola, Ololade (2017) (Lincoln-Way East, IL) | Glenbard South Lady Raider Invitational(IL), 2015-04-17(#1) |
| G-400 | 6 | 58.72 | Wesley, Destiny (2015) (Thornridge, IL) | IL 2A Kankakee Girls Sectional(IL), 2015-05-14(#2) |
| G-400 | 7 | 59.16 | Letz, Renee (2015) (Carl Sandburg, IL) | SWSC-Blue Girls Conference Meet(IL), 2015-05-07(#3) |
| G-400 | 8 | 59.34 | Gary, Julia (2017) (Carl Sandburg, IL) | SWSC-Blue Girls Conference Meet(IL), 2015-05-07(#4) |
| G-400 | 9 | 59.62 | Brown, Asia (2016) (Lincoln-Way East, IL) | Homewood-Flossmoor Girls Invitational(IL), 2015-04-11(#3) |
| G-400 | 10 | 1:00.21 | Shepard, Jamiah (2015) (Thornwood, IL) | Lincoln-Way C Lady Knights Invitational(IL), 2015-04-11(#1) |
| G-400 | 11 | 1:00.28 | Broughton, Antoinette (2015) (Homewood-Flossmoor, IL) | Lockport Girls Invitational(IL), 2015-04-24(#5) |
| G-400 | 12 | 1:00.42 | Isom, Kayla (2017) (Lockport Township , IL) | Lockport Girls Invitational(IL), 2015-04-24(#6) |
| G-400 | 13 | 1:00.90 | Benson, Valencia (2016) (Thornton Township, IL) | IL 3A Homewood-Flossmoor Girls Sectional(IL), 2015-05-14(#4) |
| G-400 | 14 | 1:00.97 | Ballard, Kaira (2016) (Lincoln-Way North, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#19) |
| G-400 | 15 | 1:01.11 | Allen, Brittney (2016) (Thornwood, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#21) |
| G-400 | 16 | 1:01.19 | Scales, Jaylyn (2018) (Homewood-Flossmoor, IL) | AAU JO Region 13 Qualifier(IL), 2015-07-05(#6) |
| G-400 | 17 | 1:01.56 | Gowgiel, Madeline (2015) (Carl Sandburg, IL) | Sandburg Girls Eagle Classic(IL), 2015-04-23(#3) |
| G-400 | 18 | 1:01.58 | Jimenez, Isabella (2016) (Homewood-Flossmoor, IL) | SWSC-Blue Girls Conference Meet(IL), 2015-05-07(#6) |
| G-400 | 19 | 1:01.60 | Gowgiel, Maddie (2015) (Carl Sandburg, IL) | Falcon Blue & Gold Invitational(IL), 2015-04-17(#3) |
| G-400 | 20 | 1:01.80 | Mickens, Aliyah (2017) (Homewood-Flossmoor, IL) | Rock Island Girls ABC Invitational(IL), 2015-04-18(#5) |
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| | | See more performances for G-400 | | |
