| Lane | Athlete | Yr. | Team | Seed | Note | 
|---|---|---|---|---|---|
| 2 | BATES, Micah | JR | Hoffman Estates (Conant) | 1:12.47 | |
| 3 | CHACKO, Shreya | JR | Rolling Meadows | 1:12.00 | |
| 4 | SCEKIC, Iva | JR | Buffalo Grove | 1:12.00 | |
| 5 | FLORES, Michell | SR | Elk Grove Village (E.G.) | 1:16.96 | 
| Lane | Athlete | Yr. | Team | Seed | Note | 
|---|---|---|---|---|---|
| 1 | GRUSZKA, Lexus | SR | Schaumburg | 1:08.88 | |
| 2 | AVALOS, Jessica | SR | Wheeling | 1:08.14 | |
| 3 | ROMAN, Gabriela | JR | Wheeling | 1:07.22 | |
| 4 | STRACHOWSKI, Sarah | SO | Palatine (Fremd) | 1:07.80 | |
| 5 | WIECEK, Julia | SR | Schaumburg | 1:08.31 | |
| 6 | GOMEZ, Ana | JR | Palatine (Fremd) | 1:11.43 | 
| Lane | Athlete | Yr. | Team | Seed | Note | 
|---|---|---|---|---|---|
| 1 | FELMAN, Issy | SR | Arlington Heights (Hersey) | 1:06.60 | |
| 2 | BOGHOSSIAN, Araxi | SR | Mt. Prospect (Prospect) | 1:05.86 | |
| 3 | NICHOLS, Adeline | SR | Barrington | 1:05.34 | |
| 4 | ENGLE, Ryane | JR | Arlington Heights (Hersey) | 1:05.82 | |
| 5 | DAVIS, Kalia | SR | Buffalo Grove | 1:06.20 | |
| 6 | RICHTER, Stella | SO | Hoffman Estates (Conant) | 1:06.89 | 
| Lane | Athlete | Yr. | Team | Seed | Note | 
|---|---|---|---|---|---|
| 1 | KAZEEM, Aisha | FR | Palatine (H.S.) | 1:05.00 | |
| 2 | DUNN, Breanne | SR | Barrington | 1:01.87 | |
| 3 | OLIVER, Ashley | SR | Hoffman Estates (H.S.) | 59.30 | |
| 4 | GINSBERG, Audrey | SR | Mt. Prospect (Prospect) | 1:00.41 | |
| 5 | OLORO, Hannah | JR | Rolling Meadows | 1:04.39 | |
| 6 | ORTEGA, Bella | JR | Hoffman Estates (H.S.) | 1:05.02 |