| MR | Northern Illinois Invitational | 42.58 | Teague, Pope, Musgrow, Greer | East Moline | 2008 |
| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed |
|---|---|---|---|---|---|---|---|
| 3 | Crystal Lake (South) | A | Pupillo | Welte-hart | Kozoil | Velesco | 46.95 |
| 4 | Machesney Park (Harlem) | A | Davies | Woodard | Ortiz | Muhammad | 46.17 |
| 5 | Freeport (H.S.) | A | Jackson | Miller | Ferguson | Green | NT |
| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed |
|---|---|---|---|---|---|---|---|
| 1 | Rockford (Boylan Catholic) | A | Starck | Montoya | Strombeck | Johnson | 46.05 |
| 2 | Sterling (H.S) | A | Schoon | Doss | Ledergerber | Tablante | 45.31 |
| 3 | Belvidere (North) | A | Mehlig | Bertolino | Brown | Powers | 44.05 |
| 4 | Sycamore (H.S) | A | Oestreicher | Schmidt | Huber | Stewart | 43.36 |
| 5 | Rolling Meadows | A | Campbell | Cox | Siomos | Groark | DQ |
| 6 | Rockton (Hononegah) | A | Hillard | Otero | Cavanagh | Wahl | 44.90 |
| 7 | Rochelle | A | Escalante | Orlikowski | Taft | Ohlinger | 45.90 |
| 8 | Crystal Lake (Prairie Ridge) | A | Demakis | Nelson | Garner | Koch | NT |