| Lane | Athlete | Yr. | Team | Seed | Note | 
|---|---|---|---|---|---|
| 2 | KUKREJA, Riya | 8 | Plum Grove | 34.38 | |
| 3 | PIERCE, Erin | 8 | Plum Grove | 32.41 | |
| 4 | CHONG, Julia | 8 | Sandburg (Rolling Meadows) | 35.70 | |
| 5 | ARIAGNO, Paige | 8 | Walter R. Sundling | NT | |
| 6 | MIDLAND, Aubrey | 8 | Walter R. Sundling | NT | 
| Lane | Athlete | Yr. | Team | Seed | Note | 
|---|---|---|---|---|---|
| 1 | VELARDE, Addison | 8 | Walter R. Sundling | NT | |
| 2 | PALUCH, Emily | 8 | Sandburg (Rolling Meadows) | 35.50 | |
| 3 | PONIECKI, Amanda | 8 | Sandburg (Rolling Meadows) | 34.60 | |
| 4 | OFURUM, Patricia | 8 | Plum Grove | 31.13 | |
| 5 | OCHWAT, Amelia | 8 | Winston | 31.20 | |
| 6 | KALETA, LIndsey | 8 | Plum Grove | 33.80 | |
| 7 | OROZCO, Bella | 8 | Winston | 34.80 | |
| 8 | HANSEN, Eden | 8 | Walter R. Sundling | NT |