| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-400 | 1 | 49.10 | Green, Tanner (2015) (Olathe South, KS) | Kansas Relays(KS), 2015-04-17(#6) |
| B-400 | 2 | 49.39 | Blake, Marcus (2015) (Turner, KS) | KS 5A Championships(KS), 2015-05-30(#1) |
| B-400 | 3 | 49.58 | Coppoc, Jace (2015) (Concordia, KS) | Great Southwest Classic(NM), 2015-06-06(#16) |
| B-400 | 4 | 49.78 | Lewis, Braxton (2015) (St. James Academy, KS) | Kansas Relays(KS), 2015-04-17(#7) |
| B-400 | 5 | 49.82 | Griffin, Kaden (2015) (South, KS) | KS 6A Championships(KS), 2015-05-30(#1) |
| B-400 | 6 | 49.83 | Summers, Chandler (2015) (Valley Center, KS) | KS 5A Championships(KS), 2015-05-30(#3) |
| B-400 | 7 | 49.87 | Carrasco, Antonio (2015) (Great Bend, KS) | Shocker Pre-State Challenge(KS), 2015-04-10(#1) |
| B-400 | 8 | 49.99 | Martin, Christopher (2015) (Manhattan, KS) | KS 6A Championships(KS), 2015-05-30(#2) |
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| | | See more performances for B-400 | | |
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