| Lane | Team | Squad | Seed | Note |
|---|---|---|---|---|
| 2 | Francis W. Parker | A | NT | |
| 3 | Percy Julian | A | DNS | |
| 4 | Matthews | A | 1:03.30 | |
| 5 | Lake Zurich South | A | 1:06:02.00 | |
| 6 | Gwendolyn Brooks (Oak Park) | A | NT |
| Lane | Team | Squad | Seed | Note |
|---|---|---|---|---|
| 1 | Hawthorn North | A | 58.80 | |
| 2 | Antioch Upper | A | 57.78 | |
| 3 | Park | A | 56.90 | |
| 4 | Big Hollow | A | 54.67 | |
| 5 | Grayslake | A | 55.90 | |
| 6 | Lake Zurich North | A | 57.20 | |
| 7 | Hawthorn South | A | 58.00 | |
| 8 | Barrington-Prairie Campus | A | 1:02.00 |