| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 3 | WHITE, Zion | SO | Bishop DuBourg High School | NT | Unverified: |
| 4 | MIESNER, Gavin | SR | Vianney High School | 1:04.39 | Verified |
| 5 | HAAR, Ryan | JR | Belleville (Althoff Catholic) | 1:05.00 | Unverified: |
| 6 | JONES, Malachi | JR | Bishop DuBourg High School | NT | Unverified: |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | SCHMEROLD, Jacob | SO | Priory High School | 59.92 | Verified |
| 2 | VIET, Dominic | JR | Father Tolton Regional Catholic | 57.16 | Verified |
| 4 | BOGNAR, Ethan | SO | St. Louis University High School | 56.35 | Verified |
| 5 | SANDERS, Logan | SO | Father Tolton Regional Catholic | 56.52 | Verified |
| 6 | ROBINSON, Brandon | SO | DeSmet Jesuit High School | 57.06 | Unverified: |
| 7 | D.K.) WEAVER, DeKarai | FR | Chaminade College Preparatory Sc | 59.53 | Verified |
| 8 | LINDSEY, Jacob | SO | Vianney High School | 1:03.22 | Verified |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | LIERMAN, Harry | SO | Chaminade College Preparatory Sc | 55.88 | Verified |
| 2 | CLEMONS, Ravonne | SR | Belleville (Althoff Catholic) | 53.46 | Verified |
| 3 | JONES, Robert | SR | Duchesne High School | 52.95 | Verified |
| 4 | MCINTOSH, Donovan | SR | St. Mary's (St. Louis) High Scho | 49.24 | Verified |
| 5 | THOMAS, Elijah | SR | DeSmet Jesuit High School | 51.92 | Unverified: |
| 6 | MUELLER, Matthew | JR | Priory High School | 53.30 | Verified |
| 7 | NUNN, Jordan | SO | Duchesne High School | 55.22 | Verified |
| 8 | JORDAN, D'Corey | SO | St. Louis University High School | 56.15 | Verified |