| Event | Rank | Mark | By | Meet |
| B-300H | 1 | 38.08 | Miles, Leon (2016) (Vicksburg, MS) | MS 5A State Meet(MS), 2015-05-08(#1) |
| | | National Elites above. State Elites below | | |
| B-300H | 2 | 39.52 | Ratliff, Kevin (2015) (Canton, MS) | MS 5A State Meet(MS), 2015-05-08(#2) |
| B-300H | 3 | 40.09 | Brassell, Devonta (2015) (North Panola, MS) | MS 3A State Meet(MS), 2015-05-08(#1) |
| B-300H | 4 | 40.11 | Jones, Gralyn (2015) (Northwest Rankin, MS) | MS 6A State Meet(MS), 2015-05-09(#2) |
| B-300H | 4 | 40.11 | Hinds, Jeremy (2016) (Tupelo, MS) | MS 6A State Meet(MS), 2015-05-09(#1) |
| B-300H | 6 | 40.13 | Presley, Ken (2016) (Oxford, MS) | MS 5A State Meet(MS), 2015-05-08(#3) |
| B-300H | 7 | 40.18 | Landrews, Jaquarius (2015) (Mccomb, MS) | MS 4A State Meet(MS), 2015-05-09(#1) |
| B-300H | 8 | 40.72 | McNeely, Jacob (2016) (Jackson Preparatory, MS) | MAIS South State AAA Championships(MS), 2015-04-25(#1) |
| B-300H | 8 | 40.72 | Byrd, Malik (2016) (Natchez, MS) | MS 5A State Meet(MS), 2015-05-08(#4) |
| B-300H | 10 | 40.77 | King, Taron (2016) (Meridian, MS) | Blue Cross/Blue Shield Invitational(MS), 2015-04-04(#2) |
| B-300H | 11 | 40.79 | Harris, Ty (2015) (Hattiesburg, MS) | Powerade Relays(MS), 2015-03-31(#1) |
| B-300H | 12 | 40.83 | Cook, Keondrick (2017) (Tylertown, MS) | MS 3A State Meet(MS), 2015-05-08(#2) |
| B-300H | 13 | 40.88 | Stewart, Larry (2015) (Pearl, MS) | Pearl Invitational(MS), 2015-04-10(#2) |
| B-300H | 14 | 40.93 | Lewis, Xavier (2016) (Biloxi, MS) | Sugar Bowl Track Classic(LA), 2015-03-28(#5) |
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| | | See more performances for B-300H | | |
