Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
B-400 | 1 | 49.31 | Thompson, Marvell (2013) (Thornton Fractional North, IL) | IL 3A Boys State Prelims(IL), 2013-05-24(#3) |
B-400 | 2 | 49.86 | Adeyemo, Moshood (2013) (Hillcrest, IL) | Bill Jackson Invitational(IL), 2013-05-03(#1) |
B-400 | 3 | 50.19 | Ryan, Jack (2013) (Evergreen Park, IL) | IL 2A Fenwick Boys Sectional(IL), 2013-05-16(#2) |
B-400 | 4 | 50.67 | Carter, Deion (2013) (H L Richards, IL) | IL 3A Downers Grove North Boys Sectional(IL), 2013-05-17(#1) |
B-400 | 5 | 51.44 | Crawford, Aaron (Tinley Park, IL) | IL 2A Thornridge Boys Sectional(IL), 2013-05-16(#4) |
B-400 | 6 | 51.70 | Dalton, Corey (Bremen, IL) | Oak Lawn Invitational(IL), 2013-04-13(#1) |
B-400 | 7 | 51.80 | Shelton, Demetrius (2013) (Bremen, IL) | Oak Lawn Invitational(IL), 2013-04-13(#2) |
B-400 | 8 | 52.50 | Centeno, Robert (2014) (Reavis, IL) | Harry McDaniel Classic(IL), 2013-05-02(#2) |
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| | | See more performances for B-400 | | |