| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed |
|---|---|---|---|---|---|---|---|
| 3 | Metropolis (Massac County) | A | Meyers | Eskridge | Tozier | Farmer | 1:41.06 |
| 4 | Cahokia (H.S.) | A | Staples-Jones | Devine | Howard | Moore | 1:37.50 |
| 5 | Waterloo (H.S.) | A | Pete | Brewer | Baldwin | Huebner | 1:38.10 |
| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed |
|---|---|---|---|---|---|---|---|
| 1 | Carterville | A | Dixon | Szczeblewski | Rice | Cordes | 1:36.28 |
| 2 | Freeburg | A | Anderson | Banks | Merritt | Merz | 1:34.99 |
| 3 | Mascoutah | A | Kendrick | Feldt | Middleton | Thiel | 1:32.10 |
| 4 | Mt. Vernon (H.S.) | A | Davis | Garrett | Hicks | Lash | 1:30.43 |
| 5 | Herrin (H.S.) | A | Clough | Lukens | Miles | Nelson | 1:31.25 |
| 6 | Columbia | A | Luebbers | Blum | Walton | Judy | DQ |
| 7 | Carbondale (H.S.) | A | Burnside | Roper | Robbins | Langan | 1:35.48 |
| 8 | Anna (A.-Jonesboro) | A | Wright | Carver | Godinez | Stokes | 1:37.16 |