Fair Grove
,
Isaac Mauldin
400
| Record | Name | Time | Year |
|---|---|---|---|
| National | Aldrich Bailey, Mansfield Timberview, Texas | 45.19 | 2012 |
| Missouri | Justin Robinson, Hazelwood West | 46.3 | 2019 |
| Illinois | Kahmari Montgomery, Plainfield Central | 46.24 | 2015 |
| # | Event | Time | Date |
|---|---|---|---|
| 1 | Missouri Class 3 Championships | 49.29 | 05-27 |