| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 2 | Hunter WALTERS | FR | Civic Memorial | 1:11.00 |
| 3 | Mitchell WILSON | SO | Triad | 1:05.84 |
| 4 | Oliver PURCELL | SO | Salem | 1:03.00 |
| 5 | Colin MOORE | SO | Father McGivney Catholic | 1:05.09 |
| 6 | Ephram WERNER | FR | Triad | 1:06.00 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 1 | Gunnar HEIL | FR | Effingham | 1:02.00 |
| 2 | Eli DECK | SO | Jersey | 1:01.00 |
| 3 | Devin MAY | FR | O'Fallon | 58.60 |
| 4 | Juan DORIA | FR | Collinsville | 57.51 |
| 5 | Jorden SERAFINI | SO | Civic Memorial | 57.90 |
| 6 | Everette MALONE | SO | Madison | 59.90 |
| 7 | Bradley DEIST | FR | Jersey | 1:01.00 |
| 8 | Jake LARA | FR | Mascoutah | 1:03.00 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 1 | Sam SPICER | FR | Effingham | 57.00 |
| 2 | Mason SHUBERT | SO | Breese Central | 54.44 |
| 3 | Jalek NELSON | SO | Collinsville | 53.50 |
| 4 | Alex KENNEDY | FR | Madison | 52.88 |
| 5 | Sean THORNTON | SO | Salem | 53.00 |
| 6 | Ayden ELLSWORTH | SO | Mascoutah | 53.85 |
| 7 | Trevor WILKERSON | SO | Edwardsville | 56.64 |
| 8 | Sam KITCHEN | FR | Edwardsville | 57.20 |