| W | World Outdoor | 43.03 | Wayne van Niekerk | RSA | 8/14/2016 | Rio de Jameiro, BRA |
| A | American Outdoor | 43.18 | Michael Johnson | Nike | 8/26/1999 | Seville, ESP |
| C | College Outdoor 1 | 43.61 | Michael Norman | So. California | 6/8/2018 | Eugene, OR |
| M | Meet | 47.15 | Brian Helaire | Sam Houston St. | 4/13/2013 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 2 | BROWN, A'ISAYAH | FR | PRAIRIE VIEW |
49.63 |
| 3 | PARSEE, CAMDYN | SR | PRAIRIE VIEW |
49.01 |
| 4 | COOPER, SEBASTIAN | JR | UNATTACHED | 46.51 |
| 5 | POWELL, JADEN | JR | MCNEESE STATE |
48.72 |
| 6 | GRAY, SAMUEL | JR | MCNEESE STATE |
49.42 |
| 7 | MORGAN, KELLEN | FR | PRAIRIE VIEW |
50.70 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 2 | TRAHAN, COLBY | SO | MCNEESE STATE |
52.58 |
| 3 | WYATT, SAMUEL | SO | LETOURNEAU |
52.35 |
| 4 | HOLLAND, DORIAN | JR | PRAIRIE VIEW |
50.95 |
| 5 | GRANSTON, GORMAN | FR | PRAIRIE VIEW |
51.24 |
| 6 | MURILLO, CALEB | FR | LETOURNEAU |
52.50 |
| 7 | MORON, NICHOLAS | FR | MCNEESE STATE |
52.81 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 2 | MOFFITT, MITCHELL | FR | LETOURNEAU |
NT |
| 3 | CARTER, NAZHIR | SR | PRAIRIE VIEW |
NT |
| 4 | ALLEN, JOSHUA | FR | LETOURNEAU |
53.76 |
| 5 | BARNES, ISAIAH | SR | PRAIRIE VIEW |
NT |
| 6 | DOUCETTE, MARQUISE | JR | PRAIRIE VIEW |
NT |
| 7 | SMITH, JALEN | SR | PRAIRIE VIEW |
NT |