| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-400 | 1 | 49.18 | Harriel, James (2014) (Bloom Township, IL) | Winston Brown Invitational(IL), 2014-04-26(#1) |
| B-400 | 2 | 49.59 | Nash, Quenten (2014) (Crete-Monee, IL) | IL 3A Boys State Prelims(IL), 2014-05-30(#13) |
| B-400 | 3 | 51.08 | Stewart, Christian (2014) (Crete-Monee, IL) | SAC Boys Championships(IL), 2014-05-14(#3) |
| B-400 | 4 | 51.12 | Treadwell, Juwaun (2017) (Crete-Monee, IL) | Bill Jackson Invitational(IL), 2014-05-09(#1) |
| B-400 | 5 | 51.93 | Simmons, Taris (2014) (Crete-Monee, IL) | Dick Beebe Track Classic(IL), 2014-04-19(#7) |
| B-400 | 6 | 51.97 | Johnson, Cedric (2015) (Bloom Township, IL) | Winston Brown Invitational(IL), 2014-04-26(#7) |
| B-400 | 7 | 52.40 | Weathersby, Derrick (2014) (Bloom Township, IL) | McCarthy Memorial Invitational(IL), 2014-05-09(#4) |
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| | | See more performances for B-400 | | |
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