Section 1 of 2
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 3 | ROBBINS, Wyatt | SO | Francis Howell High School | 47.01 | Verified |
| 4 | WITHERS, Rodney | JR | Hazelwood Central High School | 46.11 | Verified |
| 5 | KELLY, Ian | SO | Francis Howell North High School | 46.36 | Verified |
| 6 | MINTER, Jordan | SO | Francis Howell North High School | 48.05 | Verified |
Section 2 of 2
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | GARAVAGLIA, Lucius | SO | Ft. Zumwalt West High School | 44.03 | Verified |
| 2 | CALIA, Reece | SR | Ft. Zumwalt West High School | 42.79 | Verified |
| 3 | DEAL, Joshua | SO | Francis Howell High School | 42.04 | Verified |
| 4 | KAZMAIER, Bryce | SR | Francis Howell High School | 39.24 | Verified |
| 5 | NELSON JR., Edward | SR | Hickman High School | 41.38 | Verified |
| 6 | CORTALEZZI, Sebastian | SR | Hickman High School | 42.51 | Verified |
| 7 | SCHNEIDER, Nicholas | JR | Hickman High School | 42.96 | Verified |
| 8 | WRIGHT, Chi'dron | SR | Rock Bridge High School | 44.26 | Verified |
