| W | World | 50.50 | Rollins, Harper-Nelson, Harrison, Castlin | USA Blue | 4/24/2015 | Des Moines, IA |
| A | American | 50.51 | Rollins, Harper- Nelson, Harrison, Castlin | USA Blue | 4/25/2015 | Des Moines, IA |
| C | College Outdoor | 52.50 | Thomas, Mayo, Flemings, Ruddock | Texas A&M | Philadelphia, PA | |
| MS | Mississippi State School | 54.33 | Wallace, Aaron, Farquharson, T. Lee | 2010 |
| PL | Team | Squad | Time | HPL |
|---|---|---|---|---|
| 1 | Missouri St. | A | 1:01.63 | 2 (1) |
| 2 | UAB | A | 1:01.96 | 2 (2) |
| 3 | Arkansas St. | A | 1:05.40 | 1 (1) |
| Miss State | A | DQ | ||
| Alcorn St. | A | DNS |
| HPL | Team | Squad | Time |
|---|---|---|---|
| 1 | ARKANSAS ST. | A | 1:05.40 |
| ALCORN ST. | A | DNS |
| HPL | Team | Squad | Time |
|---|---|---|---|
| 1 | MISSOURI ST. | A | 1:01.63 |
| 2 | UAB | A | 1:01.96 |
| MISS STATE | A | DQ |