| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-400H | 1 | 54.87 | Dunham, Conor (2014) (St. Ignatius, IL) | US Junior Nationals(OR), 2014-07-06(#16) |
| B-400H | 2 | 55.13 | Pilliod, Luke (2014) (Glenbrook South, IL) | Senior All-Star Spotlight Meet(IL), 2014-06-14(#2) |
| B-400H | 3 | 55.21 | Agustin, Justin (2014) (Oswego East, IL) | Senior All-Star Spotlight Meet(IL), 2014-06-14(#3) |
| B-400H | 4 | 56.76 | Payton, Imani (2014) (North Lawndale Charter, IL) | USATF IL JO Championships(IL), 2014-06-22(#2) |
| B-400H | 5 | 56.79 | Jopes, Michael (2014) (Naperville Central, IL) | Senior All-Star Spotlight Meet(IL), 2014-06-14(#6) |
| B-400H | 6 | 56.97 | Vasquez, Luis (2015) (Providence Catholic, IL) | AAU National Junior Olympics 17-18(IA), 2014-08-02(#22) |
| B-400H | 7 | 58.46 | Hubbard, Daylen (2014) (Bloom Township, IL) | USATF IL JO Championships(IL), 2014-06-22(#3) |
| B-400H | 8 | 58.48 | Rogin, Ben (2014) (Highland Park, IL) | USATF IL JO Championships(IL), 2014-06-22(#4) |
| B-400H | 9 | 59.05 | Nash, Quenten (2014) (Crete-Monee, IL) | AAU Central District Championships(IL), 2014-06-15(#2) |
| B-400H | 10 | 59.15 | Bailey, Shabari (2014) (Minooka Community, IL) | USATF IL JO Championships(IL), 2014-06-22(#6) |
| B-400H | 11 | 59.31 | King, Bryant (Homewood-Flossmoor, IL) | AAU Region 13 Qualifier(IL), 2014-06-29(#4) |
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| | | See more performances for B-400H | | |
