| Lane | Team | Squad | Seed |
|---|---|---|---|
| 2 | Hinsdale (Central) | B | 56.67 |
| 3 | Hinsdale (Central) | C | NT |
| 4 | Wheaton (W. Warrenville South) | B | 1:09.20 |
| 5 | Hinsdale (Central) | D | NT |
| 6 | Downers Grove (South) | B | 58.00 |
| Lane | Team | Squad | Seed |
|---|---|---|---|
| 2 | Wheaton (W. Warrenville South) | A | 59.00 |
| 3 | Naperville (Central) | A | 54.84 |
| 4 | Naperville (Neuqua Valley) | A | 48.97 |
| 5 | Hinsdale (Central) | A | 54.45 |
| 6 | Downers Grove (South) | A | 56.00 |
| 7 | Naperville (North) | A | 1:03.00 |