| 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 |
| SR | Memphis Outdoor Program Record | 45.92 | Victor Lacey | Memphis | 1982 |
| PL | Athlete | Yr. | Team | Time | HPL | Note |
|---|---|---|---|---|---|---|
| 1 | BAILEY, Christopher | FR | Miss. Valley | 47.31 | 1 (1) | |
| 2 | DAVIS, Laval | SR | Miss. Valley | 47.65 | 1 (2) | |
| 3 | WALKER, Jermie | FR | Arkansas St | 48.53 | 1 (3) | |
| 4 | OKEZE, Charles | Unattached | 48.76 | 1 (4) | ||
| 5 | HILL, Kobey | Unattached | 49.06 | 2 (1) | ||
| 6 | GRIFFIN, Rodney | JR | Ark-Pine Bluff | 49.26 | 2 (2) | |
| 7 | HODGE JR. , Damon | FR | TN St. | 49.36 | 1 (5) | |
| 8 | NORMENT, Namman | SR | Memphis | 49.38 | 1 (6) | |
| 9 | THOMPSON, Michael | FR | TN St. | 49.69 | 1 (7) | |
| 10 | LEE, Newton | SO | Memphis | 49.82 | 1 (8) | |
| 11 | SCHWAB, Collin | SO | SE Missouri | 50.01 | 2 (3) | |
| 12 | GARDENER, Samuel | FR | Miss. Valley | 50.04 | 4 (1) | |
| 13 | SCOTT, Jamario | JR | TN St. | 50.86 | 2 (4) | |
| 14 | MITCHELL, Joseph | JR | Miss. Valley | 50.88 | 3 (1) | |
| 15 | BLACK, Jalen | SO | Ark-Little Rock | 51.04 | 2 (5) | |
| 16 | STONE, Joseph | FR | SIU E'ville | 51.08 | 5 (1) | |
| 17 | JENKINS, Kaylon | SO | SE Missouri | 51.13 | 2 (6) | |
| 18 | BRETZ, Brandon | FR | SIU E'ville | 51.20 | 3 (2) | |
| 19 | GATSON, Rogay | SO | Ark. Baptist | 51.34 | 2 (7) | |
| 20 | JOHNSON JR. , Roderick | FR | TN St. | 51.42 | 4 (2) | |
| 21 | BROWN, Collin | SO | SIU E'ville | 51.64 | 3 (3) | 51.636 |
| 22 | GOSSETT, Jaelon | SO | Ark-Little Rock | 51.64 | 4 (3) | 51.640 |
| 23 | JONES, Jaylen | SO | Christian Bros. | 51.78 | 3 (4) | |
| 24 | BREMA, Momoh | FR | SE Missouri | 51.86 | 4 (4) | |
| 25 | GIVENS, Christopher | SO | TN St. | 51.95 | 2 (8) | |
| 26 | HAYES, Marquerious | Unattached | 52.04 | 3 (5) | ||
| 27 | KNIGHT, Austin | FR | TN-Martin | 52.20 | 5 (2) | |
| 28 | WALKER, Jhon-Wes | SO | TN-Martin | 52.35 | 5 (3) | |
| 29 | BRUMFIELD, R'Lazon | SO | TN St. | 52.63 | 2 (9) | |
| 30 | LYONS , Tyran | JR | Ark-Pine Bluff | 52.73 | 3 (6) | |
| 31 | FORTUNE-JOHNSON, K'Den | JR | Arkansas St | 53.07 | 3 (7) | |
| 32 | YAEGER, Nick | SR | SE Missouri | 53.37 | 4 (5) | |
| 33 | CAMPBELL, Kevin | JR | SIU E'ville | 54.09 | 3 (8) | |
| 34 | MALLORY, Steffan | FR | Arkansas St | 54.19 | 4 (6) | |
| 35 | JACOBS, Gavin | FR | So. Indiana | 54.37 | 5 (4) | |
| 36 | MURRAY, Michael | Unattached | 55.04 | 5 (5) |
| HPL | Athlete | Yr. | Team | Time | Note |
|---|---|---|---|---|---|
| 1 | BAILEY, Christopher | FR | Miss. Valley | 47.31 | |
| 2 | DAVIS, Laval | SR | Miss. Valley | 47.65 | |
| 3 | WALKER, Jermie | FR | Arkansas St | 48.53 | |
| 4 | OKEZE, Charles | Unattached | 48.76 | ||
| 5 | HODGE JR. , Damon | FR | TN St. | 49.36 | |
| 6 | NORMENT, Namman | SR | Memphis | 49.38 | |
| 7 | THOMPSON, Michael | FR | TN St. | 49.69 | |
| 8 | LEE, Newton | SO | Memphis | 49.82 |
| HPL | Athlete | Yr. | Team | Time | Note |
|---|---|---|---|---|---|
| 1 | HILL, Kobey | Unattached | 49.06 | ||
| 2 | GRIFFIN, Rodney | JR | Ark-Pine Bluff | 49.26 | |
| 3 | SCHWAB, Collin | SO | SE Missouri | 50.01 | |
| 4 | SCOTT, Jamario | JR | TN St. | 50.86 | |
| 5 | BLACK, Jalen | SO | Ark-Little Rock | 51.04 | |
| 6 | JENKINS, Kaylon | SO | SE Missouri | 51.13 | |
| 7 | GATSON, Rogay | SO | Ark. Baptist | 51.34 | |
| 8 | GIVENS, Christopher | SO | TN St. | 51.95 | |
| 9 | BRUMFIELD, R'Lazon | SO | TN St. | 52.63 |
| HPL | Athlete | Yr. | Team | Time | Note |
|---|---|---|---|---|---|
| 1 | MITCHELL, Joseph | JR | Miss. Valley | 50.88 | |
| 2 | BRETZ, Brandon | FR | SIU E'ville | 51.20 | |
| 3 | BROWN, Collin | SO | SIU E'ville | 51.64 | 51.636 |
| 4 | JONES, Jaylen | SO | Christian Bros. | 51.78 | |
| 5 | HAYES, Marquerious | Unattached | 52.04 | ||
| 6 | LYONS , Tyran | JR | Ark-Pine Bluff | 52.73 | |
| 7 | FORTUNE-JOHNSON, K'Den | JR | Arkansas St | 53.07 | |
| 8 | CAMPBELL, Kevin | JR | SIU E'ville | 54.09 |
| HPL | Athlete | Yr. | Team | Time | Note |
|---|---|---|---|---|---|
| 1 | GARDENER, Samuel | FR | Miss. Valley | 50.04 | |
| 2 | JOHNSON JR. , Roderick | FR | TN St. | 51.42 | |
| 3 | GOSSETT, Jaelon | SO | Ark-Little Rock | 51.64 | 51.640 |
| 4 | BREMA, Momoh | FR | SE Missouri | 51.86 | |
| 5 | YAEGER, Nick | SR | SE Missouri | 53.37 | |
| 6 | MALLORY, Steffan | FR | Arkansas St | 54.19 |
| HPL | Athlete | Yr. | Team | Time | Note |
|---|---|---|---|---|---|
| 1 | STONE, Joseph | FR | SIU E'ville | 51.08 | |
| 2 | KNIGHT, Austin | FR | TN-Martin | 52.20 | |
| 3 | WALKER, Jhon-Wes | SO | TN-Martin | 52.35 | |
| 4 | JACOBS, Gavin | FR | So. Indiana | 54.37 | |
| 5 | MURRAY, Michael | Unattached | 55.04 |