| Lane | Team | Squad | Seed | Note |
|---|---|---|---|---|
| 2 | Round Lake MS | A | 1:01.00 | |
| 3 | Lindenhurst Millburn MS | A | 1:00.00 | |
| 4 | Round Lake Park | A | 59.50 | |
| 5 | Zion Central | A | 59.80 | |
| 6 | Antioch | A | 1:01.00 |
| Lane | Team | Squad | Seed | Note |
|---|---|---|---|---|
| 1 | Gurnee Viking | A | 57.80 | |
| 2 | North Chicago Neal | A | 56.60 | |
| 3 | Lake Villa Palombi | A | 56.10 | |
| 4 | Beach Park | A | 51.30 | |
| 5 | Round Lake Magee | A | 52.80 | |
| 6 | Ingleside Big Hollow | A | 56.30 | |
| 7 | Ingleside Gavin South | A | 57.70 | |
| 8 | Gurnee Woodland | A | 58.00 |