| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 2 | Bernadit, Ranulfo | FR | Bradley (B.-Bourbonnais) | 56.94 |
| 3 | Steele, Andrew | SO | Lincoln-Way West | 56.67 |
| 4 | O'Farrell, Mike | SO | Oak Forest | 56.30 |
| 5 | Williams, Kevin | JR | South Holland (Thornwood) | 56.54 |
| 6 | Delk, Kris | SR | Midlothian (Bremen) | 56.84 |
| 7 | Richardson, Elyjah | SO | Midlothian (Bremen) | 59.44 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 1 | Contreras, Alexis | SR | Joliet (Central) | 55.11 |
| 2 | Mills, Jamal | SR | South Holland (Thornwood) | 54.04 |
| 3 | Willner, Nick | JR | Lincoln-Way Central | 53.50 |
| 4 | Martorano, Michael | SO | Lincoln-Way West | 53.19 |
| 5 | Haase, Nick | SO | Minooka | 53.36 |
| 6 | Pollack, Luke | FR | Joliet (West) | 53.50 |
| 7 | Barefield, Ruddie | SO | Joliet (Central) | 54.44 |
| 8 | Randle El, Dion | FR | Harvey (Thornton) | 56.05 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 1 | White, Javante | JR | Harvey (Thornton) | 52.73 |
| 2 | Swint, Jerimiah | SR | Lansing (Thornton Fractio | 52.15 |
| 3 | Meskill, John | SO | Tinley Park (Andrew) | 51.95 |
| 4 | Borchardt, Chris | JR | Bradley (B.-Bourbonnais) | 51.10 |
| 5 | Ell, TJ | SR | Lansing (Thornton Fractio | 51.91 |
| 6 | Penn, Zarion | SO | Crete (C.-Monee) | 51.96 |
| 7 | Waldron, Joesph | SR | Tinley Park (Andrew) | 52.21 |
| 8 | Draper, Jake | FR | Lincoln-Way Central | 53.10 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 1 | Tomczak, Jake | JR | Frankfort (Lincoln-Way Ea | 50.48 |
| 2 | Reed, Christian | SR | Flossmoor (Homewood-F.) | 50.07 |
| 3 | Roberson, Tyler | SR | Flossmoor (Homewood-F.) | 49.61 |
| 4 | Rooks, Dontae | SR | Joliet (West) | 48.75 |
| 5 | Adams, Brandon | SR | Minooka | 49.03 |
| 6 | Assil, Sammie | JR | Crete (C.-Monee) | 49.97 |
| 7 | Wheat, Amitai | SR | Chicago Heights (Bloom Tw | 50.20 |
| 8 | White, Cam | JR | Frankfort (Lincoln-Way Ea | 50.51 |