| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-400 | 1 | 51.85 | Bayer, Konrad (2016) (Benet Academy, IL) | IL 3A York Boys Sectional(IL), 2015-05-22(#6) |
| B-400 | 2 | 52.11 | Mcsteen, Harry (2016) (Joliet Catholic Academy, IL) | IL 2A LaSalle-Peru Boys Sectional(IL), 2015-05-22(#5) |
| B-400 | 3 | 52.47 | Navarre, Lenell (Marist, IL) | Oak Lawn Invitational(IL), 2015-04-18(#3) |
| B-400 | 3 | 52.47 | Mauge, Bobbie (2016) (Marist, IL) | East Suburban Catholic Boys Conference Meet(IL), 2015-05-13(#2) |
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| | | See more performances for B-400 | | |
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