| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-300H | 1 | 39.07 | Douglas, Elijah (2015) (Crete-Monee, IL) | Dick Beebe Track Classic(IL), 2015-04-18(#1) |
| B-300H | 2 | 39.73 | Johnson, Cedric (2015) (Bloom Township, IL) | IL 3A Homewood-Flossmoor Boys Sectional(IL), 2015-05-21(#3) |
| B-300H | 3 | 40.40 | Hayles, Gamar (2016) (Rich Central, IL) | IL 2A Hillcrest Boys Sectional(IL), 2015-05-22(#2) |
| B-300H | 4 | 40.84 | Burns, Jaquon (2016) (Bloom Township, IL) | Southland Athletic Boys Conference Meet(IL), 2015-05-13(#2) |
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| | | See more performances for B-300H | | |
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