| Lane | Athlete | Yr. | Team | Seed | 
|---|---|---|---|---|
| 3 | MASON, Tameyah | SO | Hillside (Proviso West) | NT | 
| 5 | DAVIDSON, Saniya | FR | Hillside (Proviso West) | NT | 
| Lane | Athlete | Yr. | Team | Seed | 
|---|---|---|---|---|
| 1 | DIRZO, Vanessa | FR | Mundelein | 1:16.32 | 
| 2 | DZIEZA, Amelia | SO | Palatine (H.S.) | 1:11.62 | 
| 3 | HULL, London | JR | Maywood (Proviso East) | 1:08.30 | 
| 4 | HINMAN, Julia | SR | Arlington Heights (Hersey) | 1:08.03 | 
| 5 | ZOLLER, Ellyn | SO | Barrington | 1:08.21 | 
| 6 | WARCZAK, Rylie | FR | Algonquin (Jacobs) | 1:08.82 | 
| 7 | LIGON, Mia | SO | Chicago (De La Salle) | 1:13.87 | 
| Lane | Athlete | Yr. | Team | Seed | 
|---|---|---|---|---|
| 1 | OTTO, Annie | JR | Barrington | 1:07.58 | 
| 2 | O'REILLY, Maddie | FR | Crystal Lake (Prairie Ridge) | 1:06.26 | 
| 3 | ROARTY, Kate | SR | Chicago (Lane) | 1:05.50 | 
| 4 | KIMBLE, Ava | SO | Maywood (Proviso East) | 1:03.98 | 
| 5 | DAVIS, Claire | SO | Chicago (Lane) | 1:04.61 | 
| 6 | ANDRADE, Emily | JR | Chicago (De La Salle) | 1:06.00 | 
| 7 | MURPHY, Madeleine | FR | Arlington Heights (Hersey) | 1:06.60 | 
| 8 | GRAY, Kylie | SO | Crystal Lake (Prairie Ridge) | 1:07.94 | 
| Lane | Athlete | Yr. | Team | Seed | 
|---|---|---|---|---|
| 1 | GORMAN, Adeline | SR | Algonquin (Jacobs) | 1:02.94 | 
| 2 | ADAMS, Jamia | JR | Portage | 1:01.20 | 
| 3 | NAVARRE, Morgan | FR | Elmhurst (York) | 59.10 | 
| 4 | BYRD, Kylie | SO | Portage | 57.65 | 
| 5 | OYEBANJI, Praise | SR | Mundelein | 58.07 | 
| 6 | MASTON, Margaret | JR | Elmhurst (York) | 1:00.89 | 
| 7 | DONNELLY, Brooke | SR | Palatine (H.S.) | 1:02.81 |