| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 3 | DANIEL, River | SO | Aurora (Waubonsie Valley) | 1:02.22 |
| 4 | VASILIEV, Arianna | FR | Aurora (Waubonsie Valley) | 1:00.56 |
| 5 | BIJJAM, Shrina | SO | Aurora (Metea Valley) | 1:01.64 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 1 | KORALLUS, Olivia | SR | Naperville (North) | 58.18 |
| 2 | VALUZIS, Agata | FR | Naperville (Central) | 55.96 |
| 3 | HUNG, Samantha | SO | Naperville (Neuqua Valley) | 54.71 |
| 4 | VILLANOVA, Adriana | SO | Naperville (Central) | 54.57 |
| 5 | SENALL, Kiley | FR | Naperville (North) | 54.67 |
| 6 | NUNO, Natalie | JR | Naperville (Neuqua Valley) | 55.78 |
| 7 | ZIMMERMAN, Lana | FR | DeKalb | 56.00 |