| W | World Outdoor 2025 | 43.03 | Wayne van Niekerk | RSA | 8/14/2016 | Rio de Jameiro, BRA |
| A | American Outdoor 2025 | 43.18 | Michael Johnson | Nike | 8/26/1999 | Seville, ESP |
| C | College Outdoor 2025 | 43.61 | Michael Norman | So. California | 6/8/2018 | Eugene, OR |
| OV | OVC championship | 45.64 | Terrance Branch | SEMO | 1994 | |
| S | Facility | 45.12 | Charles Phillips | Abilene Christian | 1983 |
| Lane | # | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|---|
| 1 | 285 | MOORE, CONNOR | JR | SE MISSOURI |
48.48 |
| 2 | 441 | AGEE, QUEST | JR | TENNESSEE ST. |
48.15 |
| 3 | 357 | SACHA, KONRAD | JR | SIU EDWARDSVILLE |
48.00 |
| 4 | 442 | AKOMOLAFE, OLADIPO | SO | TENNESSEE ST. |
47.44 |
| 5 | 59 | LACY, DANIEL | SO | EASTERN ILLINOIS |
47.85 |
| 6 | 547 | WHITE, KHALID | JR | TENNESSEE-MARTIN |
48.11 |
| 7 | 151 | GARZA, JUAN | SR | LITTLE ROCK |
48.30 |
| 8 | 42 | BAILEY, BILLY | SO | EASTERN ILLINOIS |
48.47 |
| Lane | # | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|---|
| 2 | 442 | AKOMOLAFE, OLADIPO | SO | TENNESSEE ST. |
47.45 |
| 3 | 455 | JONES, MORGAN | SR | TENNESSEE ST. |
48.18 |
| 4 | 541 | SMITH, SAMIR | SR | TENNESSEE-MARTIN |
48.26 |
| 5 | 285 | MOORE, CONNOR | JR | SE MISSOURI |
49.37 |
| 6 | 42 | BAILEY, BILLY | SO | EASTERN ILLINOIS |
49.19 |
| 7 | 357 | SACHA, KONRAD | JR | SIU EDWARDSVILLE |
47.44 |
| 8 | 273 | GRAWER, MICAH | SO | SE MISSOURI |
NT |
| Lane | # | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|---|
| 2 | 531 | LANE, ELISHA | FR | TENNESSEE-MARTIN |
50.81 |
| 3 | 457 | MCCLENDON, JOSHUA | SO | TENNESSEE ST. |
48.77 |
| 4 | 547 | WHITE, KHALID | JR | TENNESSEE-MARTIN |
47.52 |
| 5 | 59 | LACY, DANIEL | SO | EASTERN ILLINOIS |
46.12 |
| 6 | 441 | AGEE, QUEST | JR | TENNESSEE ST. |
48.60 |
| 7 | 151 | GARZA, JUAN | SR | LITTLE ROCK |
47.85 |
| 8 | 79 | WILSON, SPENCER | FR | EASTERN ILLINOIS |
51.07 |