| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 2 | DERUNTZ, Adam | FR | Timberland | 58.36 | |
| 3 | BOND, Reginald | FR | Ft. Zumwalt East | 55.65 | |
| 4 | HARRIS, Nihlan | FR | Ft. Zumwalt South | 53.00 | |
| 5 | OXFORD, Landon | FR | Ft. Zumwalt East | 53.50 | |
| 6 | HIERHOLZER, Dan | SO | Timberland | 57.32 | |
| 7 | BRIZENDINE, Tristan | JR | Timberland | 59.92 |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | WANIA, Andrew | FR | Holt | 49.31 | |
| 2 | AGUILAR-BEHSMAN, Leonardo | JR | Ft. Zumwalt North | 48.59 | |
| 3 | SHIMKUS, Reed | JR | Holt | 47.26 | |
| 4 | LATINA, Grant | JR | Ft. Zumwalt North | 44.13 | |
| 5 | EDMONDS, Elijah | FR | Ft. Zumwalt South | 45.09 | |
| 6 | SMITH, Marques | SO | Ft. Zumwalt North | 48.50 | |
| 7 | WINNER-JOHNSON, Damian | JR | Holt | 48.67 | |
| 8 | POHL, Warren | JR | Ft. Zumwalt East | 52.10 |