| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-400 | 1 | 48.33 | Pittman, Isaiah (2015) (Taylor, TX) | TX 4A Area 25-26 Canyon Lake(TX), 2015-04-23(#1) |
| B-400 | 2 | 48.50 | Green, Floyd (2015) (Wheatley, TX) | TX 4A Region 3 Huntsville(TX), 2015-05-02(#1) |
| B-400 | 3 | 48.67 | Davis, Payton (2017) (Hudson, TX) | TX 4A State Meet(TX), 2015-05-16(#1) |
| B-400 | 4 | 49.17 | West, Tyrin (2016) (Fairfield, TX) | TX 4A Region 3 Huntsville(TX), 2015-05-02(#3) |
| B-400 | 5 | 49.31 | Gonzales, Ian (2017) (Big Spring, TX) | TX 4A State Meet(TX), 2015-05-16(#4) |
| B-400 | 5 | 49.31 | Smith, Elijah (2017) (Anna, TX) | TX 4A Region 2 Commerce(TX), 2015-05-02(#1) |
| B-400 | 7 | 49.38 | Neff, Ty (2015) (Bandera, TX) | TX 4A Area 29-30 Poteet(TX), 2015-04-23(#1) |
| B-400 | 8 | 49.59 | O'Brien, Pryce (2016) (Kennedale, TX) | TX 4A Region 1 Lubbock(TX), 2015-05-02(#1) |
| B-400 | 9 | 49.61 | Lopez, Ryan (2015) (Big Spring, TX) | TX 4A District 2 Levelland(TX), 2015-04-16(#2) |
| B-400 | 10 | 49.74 | Tatum, Karoan (2015) (Mexia, TX) | TX 4A Area 17-18 Waco(TX), 2015-04-22(#2) |
| B-400 | 11 | 49.76 | Robertson, Chevy (2016) (Brownwood, TX) | TX 4A Region 1 Lubbock(TX), 2015-05-02(#3) |
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| | | See more performances for B-400 | | |
