| Event | Rank | Mark | By | Meet |
| B-LJ | 1 | 23-06.00 | Fleming, Matt (2015) (Simeon Career Academy, IL) (US#43) | USATF Junior Olympics National Championships 17-18(FL), 2015-08-02w(1.4)(#5) |
| | | National Elites above. State Elites below | | |
| B-LJ | NWI | 23-02.50 | Fleming, Matt (2015) (Simeon Career Academy, IL) | IL 3A Lyons Township Boys Sectional(IL), 2015-05-22 NWI(#1) |
| B-LJ | NWI | 21-06.00 | Williams, Caleb (2015) (King, IL) | IL 2A Robeson Boys Sectional(IL), 2015-05-21 NWI(#1) |
| B-LJ | NWI | 21-05.00 | Johnson, Detres (2016) (Johnson College Prep, IL) | CPS Southwest Conf Meet #1(IL), 2015-04-01 NWI(#1) |
| B-LJ | NWI | 21-04.50 | Powell, Raheem (2015) (Orr Community Academy, IL) | Illinois Sprint Spectacular(IL), 2015-06-06 NWI(#1) |
| B-LJ | NWI | 21-04.50 | Barnes, Nick (2015) (Lindblom College Preparatory, IL) | Chicago Public League City Championships(IL), 2015-05-09 NWI(#2) |
| B-LJ | NWI | 21-04.25 | Battiest, John (2015) (Morgan Park, IL) | Chicago Public League City Championships(IL), 2015-05-09 NWI(#3) |
| B-LJ | NWI | 21-04.00 | Batiest, Jaylin (2017) (Morgan Park, IL) | IL 2A Robeson Boys Sectional(IL), 2015-05-21 NWI(#2) |
| B-LJ | 2 | 21-03.00 | Battiest, John (2015) (Morgan Park, IL) | IL 2A Boys State Finals(IL), 2015-05-30w(1.8)(#12) |
| B-LJ | NWI | 21-00.75 | Hardman, Michael (2015) (Lane Technical, IL) | IL 3A Northside Prep Boys Sectional(IL), 2015-05-22 NWI(#2) |
| B-LJ | NWI | 20-11.00 | Gasca, Francisco (2015) (Mather, IL) | IL 3A Loyola Academy Boys Sectional(IL), 2015-05-21 NWI(#4) |
| B-LJ | NWI | 20-08.00 | George, Quinton (2015) (South Shore, IL) | Chicago Public League City Championships(IL), 2015-05-09 NWI(#6) |
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| | | See more performances for B-LJ | | |
