| W | World | 46.78 | Kevin Young | USA | 8/6/1992 | Barcelona, ESP |
| A | American | 46.78 | Kevin Young | Foot Locker AC | 8/6/1992 | Barcelona, ESP |
| C | College Outdoor | 47.56 | Kerron Clement | Florida | 6/11/2005 | Sacramento, CA |
| MS | Mississippi State School | 49.39 | Dennis Otono | 1988 | ||
| MS | Mississippi State School | 49.39 | Scottie Hearn | 2015 |
| PL | JD | Athlete | Yr. | Team | Time |
|---|---|---|---|---|---|
| LARRY, ALFRED | UNATTACHED | 51.47 | |||
| TATHAM, RASHEED | MISS. STATE | 52.38 | |||
| SPINKS, KACEY | FR | SO. MISS. | 56.21 | ||
| ALEXANDER, NICHOLAS | FR | MISS. VALLEY ST. | 56.54 | ||
| LEY, CAMREN | SO | AL-H'VILLE | 56.77 | ||
| COLLINS, KURTH | SO | BUTLER CC | 58.34 | ||
| THOMAS, MARIO | FR | BUTLER CC | 58.38 | ||
| SCANTLEBURY, DARIO | SR | NEW ORLEANS | DNS |
| HPL | JD | Athlete | Yr. | Team | Time |
|---|---|---|---|---|---|
| 1 | LARRY, ALFRED | UNATTACHED | 51.47 | ||
| 2 | TATHAM, RASHEED | MISS. STATE | 52.38 | ||
| 3 | SPINKS, KACEY | FR | SO. MISS. | 56.21 | |
| 4 | ALEXANDER, NICHOLAS | FR | MISS. VALLEY ST. | 56.54 | |
| 5 | LEY, CAMREN | SO | AL-H'VILLE | 56.77 | |
| 6 | COLLINS, KURTH | SO | BUTLER CC | 58.34 | |
| 7 | THOMAS, MARIO | FR | BUTLER CC | 58.38 | |
| SCANTLEBURY, DARIO | SR | NEW ORLEANS | DNS |