| W | World Outdoor | 45.94 | Karsten Warholm | NOR | 8/3/2021 | Tokyo, JPN |
| A | American Outdoor | 46.17 | Rai Benjamin | Nike | 8/3/2021 | Tokyo, JPN |
| C | College Outdoor | 47.02 | Rai Benjamin | So. California | 6/8/2018 | Eugene, OR |
| F | Facility | 48.72 | Jeffery Gibson | BAH | 2015 |
| Lane | # | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|---|
| 2 | 350 | CAHILL, MADDOX | SR | SOUTHERN MAINE |
53.90 |
| 3 | 769 | ROSE, LEBRON | SO | TCNJ |
53.80 |
| 4 | 730 | ADAMS, NATHANIEL | JR | TCNJ |
52.72 |
| 5 | 941 | BIERY, LEVI | SR | COLBY |
51.79 |
| 6 | 519 | HORTON, BOB | JR | CALVIN |
53.34 |
| 7 | 1809 | LEA, HAPPY | SO | SOUTHERN WESLEYAN |
53.82 |
| 8 | 270 | LU, ETHAN | SO | EMORY |
54.08 |
| Lane | # | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|---|
| 2 | 970 | DERBY, REEVE | SO | COLBY |
56.45 |
| 3 | 301 | CHANG, NOAH | FR | EMORY |
55.54 |
| 4 | 1343 | SMITH, OWEN | SR | WABASH |
54.83 |
| 5 | 229 | KOU, SEBASTIAN | JR | EMORY |
54.38 |
| 6 | 960 | GRAUBART, MARK | JR | COLBY |
55.10 |
| 7 | 1472 | COLE, TRISTEN | SO | COLUMBUS ST. |
55.64 |
| 8 | 635 | HOLLOWAY, JONATHAN | SR | CALVIN |
56.50 |
| Lane | # | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|---|
| 2 | 1353 | HUISDEN, JOHN | SO | WABASH |
58.31 |
| 3 | 617 | VIVIANO, NOLAN | FR | CALVIN |
58.00 |
| 4 | 575 | RICHARDSON, WILL | SO | CALVIN |
57.60 |
| 5 | 1824 | STEPHAN, CALEB | FR | SOUTHERN WESLEYAN |
56.51 |
| 6 | 416 | PAYNE, RILEY | SR | WITTENBERG |
57.67 |
| 7 | 468 | WALLER, OMEGA | FR | WITTENBERG |
58.20 |
| 8 | 604 | BOYCE, KAIDEN | FR | CALVIN |
58.50 |
| Lane | # | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|---|
| 2 | 1140 | RIOS-CAMPOS, MICHAEL | FR | BERRY |
1:02.58 |
| 3 | 1788 | CAMPBELL, DONTAE | SO | TENNESSEE WESLEYAN |
1:00.09 |
| 4 | 972 | KUPREWICZ, PATRICK | SO | COLBY |
59.21 |
| 5 | 1378 | SANDERS, RICKY | FR | WABASH |
58.87 |
| 6 | 216 | HUANG, JASON | SR | EMORY |
59.61 |
| 7 | 1511 | LOCKETT, IAN | FR | COLUMBUS ST. |
1:00.71 |
| 8 | 1332 | VILLALON, NOAH | SR | WABASH |
1:02.73 |
| Lane | # | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|---|
| 1 | 1443 | PASLEY, REECE | JR | COLUMBUS ST. |
NT |
| 2 | 1507 | CHAY, BRENT | FR | COLUMBUS ST. |
1:05.78 |
| 3 | 1856 | BLACK, ZYON | FR | COLUMBIA INT'L |
1:04.59 |
| 4 | 1962 | WILLIAMSON, PEYTON | FR | MARION MILITARY INSTITUTE | 1:03.91 |
| 5 | 1376 | SAIDIAN, ALEC | FR | WABASH |
1:03.12 |
| 6 | 1381 | THOMPSON, BEN | FR | WABASH |
1:04.41 |
| 7 | 1710 | BROWN, JEVAREUS | SO | EMMANUEL (GA.) |
1:05.00 |
| 8 | 1747 | FUCHS, MICHAEL | SR | TENNESSEE WESLEYAN |
1:06.51 |