| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 2 | CARSON, Anna | Willowbrook | NT |
| 3 | YAO, Evelyn | Willowbrook | NT |
| 4 | TUCKER, Sydney | Hinsdale South | NT |
| 5 | GEMILO, Regeena | Conant | NT |
| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | HARTE, Nengi | Hinsdale South | NT |
| 2 | SHANNON, Victoria | Conant | 1:27.90 |
| 3 | CASTRO, Melisa | Addison Trail | 1:22.00 |
| 4 | PRONDZINSKI, Nicole | Conant | 1:22.30 |
| 5 | FLOREY, Melissa | Willowbrook | NT |
| 6 | NWAKUDU, Ugonna | Hinsdale South | NT |
| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | SANTIAGO, Zuemy | J. Sterling Morton Township | 1:09.64 |
| 2 | ALASSANI, Anita | J. Sterling Morton Township | 1:07.48 |
| 3 | COHN, Alexis | Trinity (River Forest) | 1:05.00 |
| 4 | RIVERA, Angelica | Trinity (River Forest) | 1:07.00 |
| 5 | NAVA, Alexandra | Addison Trail | 1:09.00 |
| 6 | HARRIS, Jacquera | J. Sterling Morton Township | 1:09.88 |