| World: Marsh, Burrell, Heard, Lewis USA 1:18.68 |
| American: Marsh, Burrell, Heard, Lewis Santa Monica TC 1:18.68 |
| PL | HPL | Squad | Team | Final |
|---|---|---|---|---|
| 1 | 1(1) | A | Olive Branch | 1:30.68 |
| 2 | 2(1) | A | Leflore County | 1:31.16 |
| 3 | 1(2) | A | DeSoto Central | 1:31.18 |
| 4 | 1(3) | A | West Bolivar | 1:31.44 |
| 5 | 2(2) | A | Memphis University School | 1:31.53 |
| 6 | 2(3) | A | Tupelo | 1:32.00 |
| 7 | 1(4) | A | Cordova | 1:32.60 |
| 8 | 2(4) | A | Port Gibson | 1:33.04 |
| 9 | 3(1) | A | Memphis Health/Science | 1:33.10 |
| 10 | 2(5) | A | Wingfield | 1:34.58 |
| 11 | 4(1) | A | Murrah | 1:35.13 |
| 12 | 3(2) | A | Lafayette | 1:35.23 |
| 13 | 4(2) | A | South Panola | 1:35.36 |
| 14 | 4(3) | A | Columbus | 1:35.70 |
| 15 | 1(5) | A | Greenwood | 1:35.72 |
| 16 | 3(3) | A | Winona | 1:37.39 |
| 17 | 2(6) | A | Booneville | 1:37.84 |
| 18 | 2(7) | A | Briarcrest | 1:39.65 |
| 19 | 3(4) | A | North Panola | 1:39.67 |
| 20 | 4(4) | A | Jim Hill | 1:43.27 |
| 21 | 4(5) | A | St. Aloysius | 1:46.41 |
| 22 | 4(6) | A | East Union | 1:47.67 |
| 23 | 4(7) | A | St. Joe 3 | 1:48.23 |
| 24 | 4(8) | A | Tupelo Christian | 1:56.14 |
| 1() | A | Kirby | DNS | |
| 1() | A | Noxubee County | DNS | |
| 1() | A | Hattiesburg | DNS | |
| 2() | A | Starkville | DNS | |
| 3() | A | Simmons | DNS | |
| 3() | A | Marion | DNS | |
| 3() | A | Greenville-Weston | DQ | |
| 3() | A | Grenada | DNS |
| PL | HPL | Squad | Team | Final |
|---|---|---|---|---|
| 1 | 1 | A | Olive Branch | 1:30.68 |
| 3 | 2 | A | DeSoto Central | 1:31.18 |
| 4 | 3 | A | West Bolivar | 1:31.44 |
| 7 | 4 | A | Cordova | 1:32.60 |
| 15 | 5 | A | Greenwood | 1:35.72 |
| A | Kirby | DNS | ||
| A | Noxubee County | DNS | ||
| A | Hattiesburg | DNS |
| PL | HPL | Squad | Team | Final |
|---|---|---|---|---|
| 2 | 1 | A | Leflore County | 1:31.16 |
| 5 | 2 | A | Memphis University School | 1:31.53 |
| 6 | 3 | A | Tupelo | 1:32.00 |
| 8 | 4 | A | Port Gibson | 1:33.04 |
| 10 | 5 | A | Wingfield | 1:34.58 |
| 17 | 6 | A | Booneville | 1:37.84 |
| 18 | 7 | A | Briarcrest | 1:39.65 |
| A | Starkville | DNS |
| PL | HPL | Squad | Team | Final |
|---|---|---|---|---|
| 9 | 1 | A | Memphis Health/Science | 1:33.10 |
| 12 | 2 | A | Lafayette | 1:35.23 |
| 16 | 3 | A | Winona | 1:37.39 |
| 19 | 4 | A | North Panola | 1:39.67 |
| A | Simmons | DNS | ||
| A | Marion | DNS | ||
| A | Greenville-Weston | DQ | ||
| A | Grenada | DNS |
| PL | HPL | Squad | Team | Final |
|---|---|---|---|---|
| 11 | 1 | A | Murrah | 1:35.13 |
| 13 | 2 | A | South Panola | 1:35.36 |
| 14 | 3 | A | Columbus | 1:35.70 |
| 20 | 4 | A | Jim Hill | 1:43.27 |
| 21 | 5 | A | St. Aloysius | 1:46.41 |
| 22 | 6 | A | East Union | 1:47.67 |
| 23 | 7 | A | St. Joe 3 | 1:48.23 |
| 24 | 8 | A | Tupelo Christian | 1:56.14 |