| Event | Rank | Mark | By | Meet |
| B-400 | 1 | 48.01 | Grimes, Norman (2016) (Canyon, TX) (US#10) | Texas Tech HS Open(TX), 2015-02-21(#1) |
| B-400 | 2 | 48.50 | Murphy, Drake (2015) (Ball, TX) (US#19) | Texas A&M HS Indoor Classic(TX), 2015-01-10(#2) |
| B-400 | 3 | 49.25 | Mills, L.J (2015) (Humble, TX) (US#51) | Texas A&M HS Indoor Classic(TX), 2015-01-10(#5) |
| B-400 | 4 | 49.40 | London, Wil (2015) (Waco, TX) (US#60) | Texas A&M HS Indoor Classic(TX), 2015-01-10(#6) |
| B-400 | 5 | 50.29 | Seastrunk, David (2015) (Legacy, TX) | Arkansas HS Invitational(AR), 2015-01-17(#15) |
| | | National Elites above. State Elites below | | |
| B-400 | 6 | 50.37 | Deboskie, Julian (McKinney North, TX) | Carl Lewis Invitational(TX), 2015-01-17(#2) |
| B-400 | 6 | 50.37 | Taylor, Ja'Quintman (2016) (Mansfield Summit, TX) | Arkansas HS Invitational(AR), 2015-01-17(#17) |
| B-400 | 8 | 50.45 | Deboskie, Julien (2015) (McKinney North, TX) | Oklahoma HS Indoor #1(OK), 2015-01-23(#2) |
| B-400 | 9 | 50.48 | Welford, Kai (2016) (Ball, TX) | Carl Lewis Invitational(TX), 2015-01-17(#3) |
| B-400 | 10 | 50.88 | Mills, Gerald (2015) (Marshall, TX) | Carl Lewis Invitational(TX), 2015-01-17(#6) |
| B-400 | 11 | 51.21 | Allison, Champion (2017) (George Ranch, TX) | Texas A&M HS Indoor Classic(TX), 2015-01-10(#19) |
| B-400 | 12 | 51.61 | Holmes, Joel (2015) (Hallsville, TX) | Texas A&M HS Indoor Classic(TX), 2015-01-10(#29) |
| B-400 | 13 | 51.69 | Hollis, Jordan (2017) (Red Oak, TX) | Texas A&M HS Indoor Classic(TX), 2015-01-10(#32) |
| B-400 | 14 | 51.96 | Blackwell, Nathan (2015) (Dumas, TX) | Texas Tech HS Open(TX), 2015-02-21(#5) |
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| | | See more performances for B-400 | | |
