| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 2 | Ben WINSLOW | SR | Troy (Triad) | NT | |
| 3 | Ryder HIBBS | FR | Greenville | 1:03.74 | |
| 4 | Cameron DAVIS | FR | Taylorville | 59.70 | |
| 5 | John BOHN | FR | Greenville | 1:02.38 | |
| 6 | Nick NEWTON | JR | Roxana | NT | |
| 7 | Dylan BURCH | FR | Jerseyville (Jersey) | NT |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | Grant REDNOUR | SR | Highland | 59.41 | |
| 2 | Kevahn FLANAGAN | FR | Bethalto (Civic Memorial) | 58.94 | |
| 3 | Levi MEADOWS | FR | Roxana | 57.85 | |
| 4 | Levi HANAUER | JR | Springfield (Sacred Heart-Griffin) | 56.74 | |
| 5 | Tristan VANZANDT | SO | Troy (Triad) | 57.77 | |
| 6 | Ashton DAVIS | JR | Springfield (Southeast) | 58.35 | |
| 7 | Titus FAIR | FR | Springfield (Lanphier) | 59.13 | |
| 8 | Logan WILCUTT | SO | Wood River (East Alton-W.R.) | 59.64 |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | Easton ACKERMAN | FR | Jacksonville (H.S.) | 56.34 | |
| 2 | Mason STEINBECK | SR | Highland | 56.14 | |
| 3 | Adrian WHYTE | SO | Springfield (Sacred Heart-Griffin) | 55.50 | |
| 4 | Jamal BURGESS JR | SO | Wood River (East Alton-W.R.) | 54.40 | |
| 5 | Jeremy JACKSON | SO | Springfield (Lanphier) | 55.44 | |
| 6 | Tullio ZAMPIERI | FR | Bethalto (Civic Memorial) | 55.96 | |
| 7 | Brayden TRELLO | JR | Rochester | 56.28 | |
| 8 | David SCHAFER | FR | Taylorville | 56.47 |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | Ayden HUET | SR | Rochester | 53.45 | |
| 2 | Keyon DAY | SO | Springfield (Southeast) | 52.87 | |
| 3 | Jaylen PENNINGTON | SO | Cahokia (H.S.) | 50.77 | |
| 4 | Devion MONTGOMERY | SR | East St. Louis (Sr.) | 48.81 | |
| 5 | Quentin STEPNEY | SR | East St. Louis (Sr.) | 49.87 | |
| 6 | Mason SHUBERT | JR | Breese (Central) | 50.99 | |
| 7 | Keller FINN | JR | Jacksonville (H.S.) | 53.11 | |
| 8 | Zion TAYLOR | SO | Cahokia (H.S.) | 53.71 |