| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | PIERCE, Kyra | Bolingbrook | NT |
| 2 | KING, Cheyenne | Palos Hills (Stagg) | 1:05.63 |
| 3 | AMRAH, Shadin | Tinley Park (Andrew) | 1:03.73 |
| 4 | FICARO, Olivia | Tinley Park (Andrew) | 59.76 |
| 5 | WOULLARD, Peyton | Flossmoor (Homewood-F.) | 1:00.14 |
| 6 | SISSAC, Samya | Flossmoor (Homewood-F.) | 1:04.81 |
| 7 | AL-QAHEF, Issees | Palos Hills (Stagg) | 1:06.84 |
| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | HAHN, Haley | Frankfort (Lincoln-Way East) | 55.87 |
| 2 | REKOSH, Julia | New Lenox (Lincoln-Way Central) | 55.22 |
| 3 | CROSS, Addison | New Lenox (Lincoln-Way Central) | 53.71 |
| 4 | HAYDEN, Kyra | Frankfort (Lincoln-Way East) | 47.62 |
| 5 | KEMP, Brooke | Lockport (Twp.) | 53.24 |
| 6 | SCHUSSLER, Madelyn | New Lenox (Lincoln-Way West) | 55.14 |
| 7 | SMITH, Dajanae | Bolingbrook | 55.24 |
| 8 | DADO, Natalie | Lockport (Twp.) | 57.71 |