| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 3 | STOVALL, Mark | SO | Parkway North High School | NT | Unverified: |
| 4 | JONES, Elijah | SO | Parkway North High School | NT | Unverified: |
| 5 | SMITH, Lucas | SO | Northwest (Cedar Hill) High Scho | NT | Unverified: |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 2 | MCCURDY, Matthew | SO | Parkway West High School | 55.90 | Unverified: |
| 3 | ENGELHARD, Jack | SO | Francis Howell North High School | 53.09 | Verified |
| 4 | SIMS, Joshua | SO | Hazelwood Central High School | 50.81 | Verified |
| 5 | WALTER, Jacob | SO | Kirkwood High School | 51.95 | Verified |
| 6 | KELLEY, Ian | 9 | Jackson High School | 55.71 | Verified |
| 7 | MIDDLETON, David | SO | McCluer High School | NT | Unverified: |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | RILEY, Joseph | SO | Northwest (Cedar Hill) High Scho | 49.94 | Verified |
| 2 | KOSSMANN, CAMERON | 9 | Marquette High School | 48.00 | Verified |
| 3 | KING, CARLLION | JR | Lafayette (Wildwood) High School | 46.56 | Verified |
| 4 | COLEMAN, Kelvin | SO | Hazelwood Central High School | 45.59 | Verified |
| 5 | SMITH, Hannon | JR | Kirkwood High School | 45.84 | Verified |
| 6 | STITH, SANTINO | 9 | Lafayette (Wildwood) High School | 46.58 | Verified |
| 7 | GRIFFIN, STEVION | SO | Marquette High School | 49.06 | Verified |
| 8 | FENG, Ryan | JR | Parkway West High School | 50.10 | Unverified: |