Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
B-400 | 1 | 48.29 | Higgins, Tyler (2017) (Highland, IL) | IL 2A Boys State Finals(IL), 2015-05-30(#1) |
B-400 | 2 | 51.19 | Hilling, Dan (2015) (Triad, IL) | Mississippi Valley Boys Conference Meet(IL), 2015-05-13(#2) |
B-400 | 3 | 51.45 | Krause, Ryan (2015) (Triad, IL) | Granite City Invitational(IL), 2015-04-17(#6) |
B-400 | 4 | 51.46 | Hays, Noah (2017) (Waterloo, IL) | IL 2A Triad Boys Sectional(IL), 2015-05-21(#4) |
B-400 | 5 | 52.29 | Riggs, Grant (2015) (Highland, IL) | Mississippi Valley Boys Conference Meet(IL), 2015-05-13(#5) |
B-400 | 6 | 52.47 | Mckinney, Eli (2015) (Civic Memorial, IL) | IL 2A Lanphier Boys Sectional(IL), 2015-05-22(#5) |
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| | | See more performances for B-400 | | |