| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 4 | HOFFMAN, Emma | 6 | Hawthorn South | 1:23.58 | |
| 5 | ENG, Amanda | 7 | Lake Zurich South | 1:25.00 |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | MUNASINGHE, Iruni | 7 | Lake Zurich South | 1:20.00 | |
| 2 | SEAR, Kate | 7 | Hawthorn North | 1:18.92 | |
| 3 | KHAYTIN, Shaina | 6 | Matthews | 1:15.40 | |
| 4 | MEITZLER, Jenna | 6 | Barrington-Prairie Campus | 1:13.00 | |
| 5 | VODICKA, Alyssa | 6 | Wauconda | 1:14.00 | |
| 6 | SHECHTMAN, Lydia | 7 | Barrington-Station Campus | 1:16.00 | |
| 7 | BROWN, Nicole | 7 | Grayslake | 1:20.00 | |
| 8 | HOU, Ainika | 7 | Hawthorn South | 1:20.00 |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | PIELA, Vicky | 7 | Grayslake | 1:12.10 | |
| 2 | OBERFIELD, Brianna | 7 | Lake Zurich North | 1:12.00 | |
| 3 | ANTONUCCI, Bella | 6 | Wauconda | 1:10.00 | |
| 4 | STEUER, Annie | 7 | Lake Zurich North | 1:05.00 | |
| 5 | CHAN, Ashley | 7 | Matthews | 1:05.48 | |
| 6 | GARRELS, Colette | 7 | Barrington-Station Campus | 1:11.00 | |
| 7 | NEARY, Molly | 6 | Hawthorn North | 1:12.02 | |
| 8 | ROBINSON, Amelie | 6 | Barrington-Prairie Campus | 1:13.00 |