| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 3 | BOURGEADE, William | FR | St. Charles High School | 50.82 | Verified |
| 4 | NORRIS, Ryan | JR | Ft. Zumwalt East High School | 49.40 | Verified |
| 5 | BOEHM, Colby | SO | St. Charles High School | 50.50 | Verified |
| 6 | MENDEZ-MAGANA, Joshua | JR | Orchard Farm High School | 51.97 | Verified |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | FISCHER, Nathan | SR | Orchard Farm High School | 45.29 | Verified |
| 2 | EDWARDS, Harrison | SR | Troy Buchanan High School | 43.22 | Verified |
| 3 | HYDE, Matthew | JR | Winfield High School | 42.93 | Verified |
| 4 | DEWITT, Xander | JR | Ft. Zumwalt South High School | 40.65 | Verified |
| 5 | LARUE, Lucas | JR | Troy Buchanan High School | 41.38 | Verified |
| 6 | GLASGOW, DaeShon | SR | Hannibal High School | 43.07 | Verified |
| 7 | WHITESIDE, Chance | SO | Hannibal High School | 43.82 | Verified |
| 8 | WILLIAMS, De Vin | 9 | Ft. Zumwalt East High School | NT |