| Lane | Athlete | Yr. | Team | Seed | 
|---|---|---|---|---|
| 1 | ORIGER, Sierra | JR | Barrington | NT | 
| 2 | KROTOSZYNSKI, Olivia | FR | Buffalo Grove | 1:14.48 | 
| 3 | STAFFORD, Leslie | SR | Buffalo Grove | 1:10.88 | 
| 4 | BATES, Micah | JR | Hoffman Estates (Conant) | 1:08.19 | 
| 5 | ZAJAK, Kordilia | JR | Elk Grove Village (E.G.) | 1:09.13 | 
| 6 | STATES, Nicole | JR | Hoffman Estates (Conant) | 1:11.71 | 
| 7 | GAST, Gabby | JR | Elk Grove Village (E.G.) | 1:20.43 | 
| Lane | Athlete | Yr. | Team | Seed | 
|---|---|---|---|---|
| 1 | DESAI, Anishi | SR | Palatine (Fremd) | 1:07.00 | 
| 2 | FLETCHER, Makhia | FR | Schaumburg | 1:06.34 | 
| 3 | ROMAN, Gabriela | JR | Wheeling | 1:04.75 | 
| 4 | NICHOLS, Adeline | SR | Barrington | 1:04.54 | 
| 5 | ENGLE, Ryane | JR | Arlington Heights (Hersey) | 1:04.58 | 
| 6 | SCHLUCKBIER, Grace | SO | Schaumburg | 1:05.02 | 
| 7 | BIALKO, Madeline | FR | Arlington Heights (Hersey) | 1:06.50 | 
| 8 | CARRILLO, Vanessa | JR | Palatine (H.S.) | 1:07.04 | 
| Lane | Athlete | Yr. | Team | Seed | 
|---|---|---|---|---|
| 1 | ORTEGA, Bella | SO | Hoffman Estates (H.S.) | 1:03.88 | 
| 2 | KUEHN, Katie | SO | Palatine (Fremd) | 1:02.49 | 
| 3 | SCHIELE, Lauren | SR | Rolling Meadows | 59.13 | 
| 4 | OLIVER, Ashley | SR | Hoffman Estates (H.S.) | 57.13 | 
| 5 | GINSBERG, Audrey | SR | Mt. Prospect (Prospect) | 59.09 | 
| 6 | KALAWAY, Cameron | JR | Mt. Prospect (Prospect) | 1:00.81 | 
| 7 | OLORO, Hannah | JR | Rolling Meadows | 1:03.45 | 
| 8 | AVALOS, Jessica | SR | Wheeling | 1:04.24 |