| 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 |
| MS | Mississippi State School | 44.75 | Jamel Ashley | 2005 |
| PL | Athlete | Yr. | Team | Time | HPL |
|---|---|---|---|---|---|
| 1 | RYAN CHAMPLIN | SO | MEMPHIS | 46.91 | 1 (1) |
| 2 | JARRED PASLEY | SR | MEMPHIS | 46.97 | 1 (2) |
| 3 | RASHEED TATHAM | JR | MISS STATE | 47.19 | 1 (3) |
| 4 | NATE SANFORD | FR | W. ALABAMA | 48.12 | 2 (1) |
| 5 | MALCUM TATUM | SO | MISS STATE | 48.18 | 1 (4) |
| 6 | VINCE CASTILLO | SO | MISS STATE | 48.47 | 2 (2) |
| 7 | KELDRICK EDWARDS | FR | MOBILE | 48.52 | 1 (5) |
| 8 | TREVIAN JENKINS | JR | AL-H'VILLE | 48.59 | 3 (1) |
| 9 | ANTAUN ANDREWS | SR | MEMPHIS | 48.87 | 2 (3) |
| 10 | DARIUS MAJOR | JR | ALCORN ST. | 49.02 | 1 (6) |
| 11 | LAVAL DAVIS | JR | MISS. VALLEY | 49.14 | 1 (7) |
| 12 | COLLIN SCHWAB | FR | SE MO | 49.23 | 3 (2) |
| 13 | BRANDON CHUNN | JR | SE MO | 49.29 | 4 (1) |
| 14 | WESLEY LOVE | SR | GRAMBLING | 49.30 | 2 (4) |
| 15 | DANIEL NIXON | SO | MISS STATE | 49.32 | 2 (5) |
| 16 | JOSEPH MICHELL | SO | MISS. VALLEY | 49.45 | 2 (6) |
| 17 | AUSTIN WILLIAMS | SR | W. ALABAMA | 49.62 | 3 (3) |
| 18 | HARRISON COLEMAN | SO | NEW ORLEANS | 49.80 | 2 (7) |
| 19 | JUSTIN JACKSON | JR | MISS. VALLEY | 49.92 | 3 (4) |
| 20 | OJAY GIBSON | FR | AL-H'VILLE | 49.94 | 3 (5) |
| 21 | KENYA SMALL | FR | MISS STATE | 49.94 | 3 (6) |
| 22 | MAKELL BROWN | FR | MERIDIAN CC | 50.26 | 2 (8) |
| 23 | ELIJAH DRYER | FR | AL-H'VILLE | 50.33 | 2 (9) |
| 24 | KAYLON JENKINS | FR | SE MO | 50.58 | 4 (2) |
| 25 | QUENTAVIOUS DIXON | SO | LANE | 50.83 | 5 (1) |
| 26 | K'DEN FORTUNE-JOHNSON | SO | ARKANSAS ST. | 51.23 | 4 (3) |
| 27 | TYRIQUE DAVIS-GILES | FR | AL-H'VILLE | 51.49 | 3 (7) |
| 28 | BRYCE PEASE | FR | SE MO | 51.62 | 4 (4) |
| 29 | KELLEN BLANCHETT | SR | ARKANSAS ST. | 51.79 | 4 (5) |
| 30 | COLETON CLIFFT | SO | ARKANSAS ST. | 51.98 | 4 (6) |
| 31 | CAL URYCKI | JR | SE MO | 52.22 | 5 (2) |
| 32 | STEVEN SOLES JR. | FR | MOBILE | 53.41 | 4 (7) |
| 33 | CAMREN LEY | JR | AL-H'VILLE | 53.98 | 3 (8) |
| 34 | HAYDEN HAMPTON | SO | ARKANSAS ST. | 54.09 | 4 (8) |
| 35 | NATHAN MACKLIN | FR | LANE | 56.66 | 5 (3) |
| 36 | TANERIO LAUDERDALE | SO | LANE | 58.07 | 5 (4) |
| TERRYON CONWELL | FR | MISS STATE | DNS | ||
| JEREMY GAMBLE | SO | ALCORN ST. | DNS | ||
| BRAYLON CONSTANTINE | MISS. VALLEY | DNS | |||
| JAVON WHITE | SR | LANE | DNS | ||
| RIDWAAN PAIGE | FR | RUST | DNS | ||
| TERRANCE SYKES | JR | RUST | DNS | ||
| JADARIUS MCKINLEY | SO | RUST | DNS | ||
| LEE WILKINS | SR | LANE | DNS |
| HPL | Athlete | Yr. | Team | Time |
|---|---|---|---|---|
| 1 | RYAN CHAMPLIN | SO | MEMPHIS | 46.91 |
| 2 | JARRED PASLEY | SR | MEMPHIS | 46.97 |
| 3 | RASHEED TATHAM | JR | MISS STATE | 47.19 |
| 4 | MALCUM TATUM | SO | MISS STATE | 48.18 |
| 5 | KELDRICK EDWARDS | FR | MOBILE | 48.52 |
| 6 | DARIUS MAJOR | JR | ALCORN ST. | 49.02 |
| 7 | LAVAL DAVIS | JR | MISS. VALLEY | 49.14 |
| TERRYON CONWELL | FR | MISS STATE | DNS |
| HPL | Athlete | Yr. | Team | Time |
|---|---|---|---|---|
| 1 | NATE SANFORD | FR | W. ALABAMA | 48.12 |
| 2 | VINCE CASTILLO | SO | MISS STATE | 48.47 |
| 3 | ANTAUN ANDREWS | SR | MEMPHIS | 48.87 |
| 4 | WESLEY LOVE | SR | GRAMBLING | 49.30 |
| 5 | DANIEL NIXON | SO | MISS STATE | 49.32 |
| 6 | JOSEPH MICHELL | SO | MISS. VALLEY | 49.45 |
| 7 | HARRISON COLEMAN | SO | NEW ORLEANS | 49.80 |
| 8 | MAKELL BROWN | FR | MERIDIAN CC | 50.26 |
| 9 | ELIJAH DRYER | FR | AL-H'VILLE | 50.33 |
| HPL | Athlete | Yr. | Team | Time |
|---|---|---|---|---|
| 1 | TREVIAN JENKINS | JR | AL-H'VILLE | 48.59 |
| 2 | COLLIN SCHWAB | FR | SE MO | 49.23 |
| 3 | AUSTIN WILLIAMS | SR | W. ALABAMA | 49.62 |
| 4 | JUSTIN JACKSON | JR | MISS. VALLEY | 49.92 |
| 5 | OJAY GIBSON | FR | AL-H'VILLE | 49.94 |
| 6 | KENYA SMALL | FR | MISS STATE | 49.94 |
| 7 | TYRIQUE DAVIS-GILES | FR | AL-H'VILLE | 51.49 |
| 8 | CAMREN LEY | JR | AL-H'VILLE | 53.98 |
| JEREMY GAMBLE | SO | ALCORN ST. | DNS |
| HPL | Athlete | Yr. | Team | Time |
|---|---|---|---|---|
| 1 | BRANDON CHUNN | JR | SE MO | 49.29 |
| 2 | KAYLON JENKINS | FR | SE MO | 50.58 |
| 3 | K'DEN FORTUNE-JOHNSON | SO | ARKANSAS ST. | 51.23 |
| 4 | BRYCE PEASE | FR | SE MO | 51.62 |
| 5 | KELLEN BLANCHETT | SR | ARKANSAS ST. | 51.79 |
| 6 | COLETON CLIFFT | SO | ARKANSAS ST. | 51.98 |
| 7 | STEVEN SOLES JR. | FR | MOBILE | 53.41 |
| 8 | HAYDEN HAMPTON | SO | ARKANSAS ST. | 54.09 |
| BRAYLON CONSTANTINE | MISS. VALLEY | DNS |
| HPL | Athlete | Yr. | Team | Time |
|---|---|---|---|---|
| 1 | QUENTAVIOUS DIXON | SO | LANE | 50.83 |
| 2 | CAL URYCKI | JR | SE MO | 52.22 |
| 3 | NATHAN MACKLIN | FR | LANE | 56.66 |
| 4 | TANERIO LAUDERDALE | SO | LANE | 58.07 |
| JAVON WHITE | SR | LANE | DNS | |
| RIDWAAN PAIGE | FR | RUST | DNS | |
| TERRANCE SYKES | JR | RUST | DNS | |
| JADARIUS MCKINLEY | SO | RUST | DNS | |
| LEE WILKINS | SR | LANE | DNS |