| W | World Outdoor | 43.03 | Wayde van Niekerk | RSA | 8/14/2016 | Rio de Janeiro, BRA |
| A | American Outdoor | 43.18 | Michael Johnson | Nike | 8/26/1999 | Seville, ESP |
| C | College Outdoor | 43.61 | Michael Norman | So. California | 6/8/2018 | Eugene, OR |
| F | Facility | 45.11 | Steven Gardiner | BAH | 2015 | |
| F | Facility | 51.51 | Chandra Cheeseborough | Athletics West | 1984 |
| Lane | # | Athlete | Yr. | Team |
|---|---|---|---|---|
| 1 | 565 | BEDFORD, RHYS | SO | CALVIN |
| 2 | 522 | VANBAREN, ZACH | JR | CALVIN |
| 3 | 1112 | BARCH, RYAN | JR | BERRY |
| 4 | 342 | D'AMICO, MICHAEL | SR | SOUTHERN MAINE |
| 5 | 971 | JOSHI, MILAN | SO | COLBY |
| 6 | 341 | BURKE, CHRISTIAN | SR | SOUTHERN MAINE |
| 7 | 1003 | HALL, JAKE | FR | COLBY |
| 8 | 1886 | HUNLEY, RYLAND | FR | YOUNG HARRIS |
| Lane | # | Athlete | Yr. | Team |
|---|---|---|---|---|
| 1 | 1915 | JOHNSON, EVAN | FR | YOUNG HARRIS |
| 2 | 1672 | ROOKS, COREY | SO | TRUETT-MCCONNELL |
| 3 | 62 | KAULBACK, DILLON | FR | CLEMSON |
| 4 | 1835 | MCCASKILL, HUNTER | JR | COLUMBIA INT'L |
| 5 | 944 | LYON, ALEX | SR | COLBY |
| 6 | 660 | MASSIE, SETH | SO | CUMBERLANDS |
| 7 | 1002 | BOGNON, BEN | FR | COLBY |
| 8 | 652 | GOLBACH, JELLE | SR | CUMBERLANDS |