| W | World | 43.03 | Wayde van Niekirk | South Africia | 8/14/2016 | Rio de Janerio, BRA |
| A | American | 43.18 | Michael Johnson | Nike | 8/26/1999 | Seville, ESP |
| C | College Outdoor | 43.70 | Fred Kerley | Texas A&M | 5/26/2017 | Austin, TX |
| VT | Vanderbilt Track | 45.51 | Kelly Willie | LSU | 5/15/2005 |
| PL | JD | Athlete | Yr. | Team | Time | HPL |
|---|---|---|---|---|---|---|
| 1 | JAQUEZ TORIAN | FR | M.T.S.U. | 48.08 | 1 (1) | |
| 2 | QUAMEL PRINCE | N'VILLE T.C. | 48.19 | 1 (2) | ||
| 3 | BEN MONTGOMERY | SR | ILLINOIS ST. | 48.29 | 1 (3) | |
| 4 | JONATHAN IMES | FR | LIPSCOMB | 48.37 | 2 (1) | |
| 5 | TREVON SANDERS | SO | M.T.S.U. | 48.38 | 2 (2) | |
| 6 | JOSH HALL | SR | LOUISVILLE | 48.39 | 1 (4) | |
| 7 | NATHAN NAMMOUR | JR | BELMONT | 48.47 | 1 (5) | |
| 8 | ANTHONY CRANDON | JR | LOUISVILLE | 49.20 | 2 (3) | |
| 9 | BRANDON GAGE | FR | ILLINOIS ST. | 49.46 | 3 (1) | |
| 10 | COREY GOODLOE | JR | OAKLAND | 49.64 | 1 (6) | |
| 11 | RYAN TEAGUE | SO | BELMONT | 49.71 | 2 (4) | |
| 12 | JAMES BRANDENBURG | JR | ILLINOIS ST. | 49.72 | 4 (1) | |
| 13 | KADEN KIEFFER | SO | BELMONT | 50.25 | 3 (2) | |
| 14 | JACOB UHL | FR | BUTLER | 50.40 | 4 (2) | |
| 15 | ANDREW GARCIA | JR | BELMONT | 50.49 | 3 (3) | |
| 16 | GRAHAM STECZ | SR | BUTLER | 50.58 | 3 (4) | |
| 17 | JAKE BOWERS | SO | BUTLER | 50.83 | 3 (5) | |
| 18 | LANE WHITE | JR | HILLSDALE | 51.02 | 2 (5) | |
| 19 | ALEC HIGDON-BURGESS | SO | LOUISVILLE | 51.67 | 4 (3) | |
| 20 | JORDAN WILKERSON | SO | ILLINOIS ST. | 51.69 | 2 (6) | |
| 21 | ZACK JOYCE | SR | OAKLAND | 51.95 | 2 (7) | |
| 22 | CONNOR FULLER | SO | BUTLER | 52.06 | 4 (4) | |
| 23 | NATE ELDRIDGE | FR | HILLSDALE | 53.37 | 3 (6) | |
| 24 | TIMOTHY CODY | FR | BELMONT | 53.41 | 4 (5) | |
| 25 | DYLAN DUCKWORTH | FR | W. KY. | 53.49 | 4 (6) | |
| 26 | LUKE DAVIS | SO | T'VECCA NAZ. | 56.07 | 4 (7) | |
| ADENIJI ADEDAMOLA | JR | M.T.S.U. | DNS | |||
| MATTHEW STEWART | FR | M.T.S.U. | DNS | |||
| LANGSTON LOVE | FR | LOUISVILLE | DNS |
| HPL | JD | Athlete | Yr. | Team | Time |
|---|---|---|---|---|---|
| 1 | JAQUEZ TORIAN | FR | M.T.S.U. | 48.08 | |
| 2 | QUAMEL PRINCE | N'VILLE T.C. | 48.19 | ||
| 3 | BEN MONTGOMERY | SR | ILLINOIS ST. | 48.29 | |
| 4 | JOSH HALL | SR | LOUISVILLE | 48.39 | |
| 5 | NATHAN NAMMOUR | JR | BELMONT | 48.47 | |
| 6 | COREY GOODLOE | JR | OAKLAND | 49.64 | |
| ADENIJI ADEDAMOLA | JR | M.T.S.U. | DNS |
| HPL | JD | Athlete | Yr. | Team | Time |
|---|---|---|---|---|---|
| 1 | JONATHAN IMES | FR | LIPSCOMB | 48.37 | |
| 2 | TREVON SANDERS | SO | M.T.S.U. | 48.38 | |
| 3 | ANTHONY CRANDON | JR | LOUISVILLE | 49.20 | |
| 4 | RYAN TEAGUE | SO | BELMONT | 49.71 | |
| 5 | LANE WHITE | JR | HILLSDALE | 51.02 | |
| 6 | JORDAN WILKERSON | SO | ILLINOIS ST. | 51.69 | |
| 7 | ZACK JOYCE | SR | OAKLAND | 51.95 |
| HPL | JD | Athlete | Yr. | Team | Time |
|---|---|---|---|---|---|
| 1 | BRANDON GAGE | FR | ILLINOIS ST. | 49.46 | |
| 2 | KADEN KIEFFER | SO | BELMONT | 50.25 | |
| 3 | ANDREW GARCIA | JR | BELMONT | 50.49 | |
| 4 | GRAHAM STECZ | SR | BUTLER | 50.58 | |
| 5 | JAKE BOWERS | SO | BUTLER | 50.83 | |
| 6 | NATE ELDRIDGE | FR | HILLSDALE | 53.37 | |
| MATTHEW STEWART | FR | M.T.S.U. | DNS |
| HPL | JD | Athlete | Yr. | Team | Time |
|---|---|---|---|---|---|
| 1 | JAMES BRANDENBURG | JR | ILLINOIS ST. | 49.72 | |
| 2 | JACOB UHL | FR | BUTLER | 50.40 | |
| 3 | ALEC HIGDON-BURGESS | SO | LOUISVILLE | 51.67 | |
| 4 | CONNOR FULLER | SO | BUTLER | 52.06 | |
| 5 | TIMOTHY CODY | FR | BELMONT | 53.41 | |
| 6 | DYLAN DUCKWORTH | FR | W. KY. | 53.49 | |
| 7 | LUKE DAVIS | SO | T'VECCA NAZ. | 56.07 | |
| LANGSTON LOVE | FR | LOUISVILLE | DNS |