| Lane | Team | Squad | Seed | 
|---|---|---|---|
| 3 | Des Plaines (Maine West) | A | 1:54.95 | 
| 4 | Minooka | A | 1:41.43 | 
| 5 | Zion (Z.-Benton) | A | 1:37.18 | 
| 6 | Rockton (Hononegah) | A | 1:38.00 | 
| 7 | Park Ridge (Maine East) | A | 1:41.52 | 
| Lane | Team | Squad | Seed | 
|---|---|---|---|
| 2 | LaGrange (Lyons) | A | 1:36.49 | 
| 3 | Springfield | A | 1:36.00 | 
| 4 | Arlington Heights (Hersey) | A | 1:35.28 | 
| 5 | Hoffman Estates (H.S.) | A | 1:33.97 | 
| 6 | Skokie (Niles North) | A | 1:35.00 | 
| 7 | Chicago (Whitney Young) | A | 1:35.64 | 
| 8 | Naperville (Central) | A | 1:36.30 | 
| Lane | Team | Squad | Seed | 
|---|---|---|---|
| 1 | Barrington | A | 1:33.74 | 
| 2 | Chicago (St. Ignatius College Prep) | A | 1:33.50 | 
| 3 | Winnetka (New Trier) | A | 1:32.69 | 
| 4 | Downers Grove (South) | A | 1:31.50 | 
| 5 | Mt. Prospect (Prospect) | A | 1:29.50 | 
| 6 | Naperville (Neuqua Valley) | A | 1:31.00 | 
| 7 | Chicago (Lane) | A | 1:32.20 | 
| 8 | Hillside (Proviso West) | A | 1:33.00 | 
| 9 | Lockport (Twp.) | A | 1:33.53 |