| Lane | Athlete | Yr. | Team | Seed | 
|---|---|---|---|---|
| 1 | EMPAMANO, Elyse | SO | Hinsdale (Central) | NT | 
| 2 | WALSH, Hannah | JR | Naperville (North) | 1:06.09 | 
| 3 | BURKE, Riley | SR | Naperville (North) | 1:02.00 | 
| 4 | KENNEDY, Zoe | SR | Naperville (Central) | 1:01.19 | 
| 5 | GILL, Surjee | FR | Naperville (North) | 1:01.71 | 
| 6 | HUDSON, Miracle | FR | Downers Grove (South) | 1:02.74 | 
| 7 | HADER, Cora | FR | Naperville (Central) | 1:09.77 | 
| Lane | Athlete | Yr. | Team | Seed | 
|---|---|---|---|---|
| 1 | VARCHETTO, Taylor | JR | Hinsdale (Central) | 58.80 | 
| 2 | KORALLUS, Olivia | SR | Naperville (North) | 57.12 | 
| 3 | VALUZIS, Agata | FR | Naperville (Central) | 55.40 | 
| 4 | VILLANOVA, Adriana | SO | Naperville (Central) | 54.57 | 
| 5 | FINK, Sydni | SO | Naperville (North) | 55.29 | 
| 6 | MCCOY, Destynee | FR | Hinsdale (Central) | 56.29 | 
| 7 | HUGHES, Jordan | JR | Wheaton (W. Warrenville South) | 57.34 | 
| 8 | KOWALSKI, Renee | SR | Downers Grove (South) | 1:00.34 |