| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-400 | 1 | 49.28 | Ray, Trevor (2013) (Lakes, IL) | IL 2A Vernon Hills Boys Sectional(IL), 2013-05-17(#1) |
| B-400 | 2 | 49.29 | Chapman, Leroy (2013) (Antioch, IL) | Crystal Lake Central Boys Invitational(IL), 2013-04-26(#1) |
| B-400 | 3 | 51.07 | Giordano, Nick (2013) (Lake Forest, IL) | IL 3A Buffalo Grove Boys Sectional(IL), 2013-05-16(#3) |
| B-400 | 4 | 51.70 | Gerrits, Mark (2013) (Lakes, IL) | IL 2A Vernon Hills Boys Sectional(IL), 2013-05-17(#4) |
| B-400 | 5 | 51.81 | Patrick, Kyle (2013) (Antioch, IL) | IL 2A Vernon Hills Boys Sectional(IL), 2013-05-17(#5) |
| B-400 | 6 | 51.94 | Kasten, Sam (2013) (Vernon Hills, IL) | IL 2A Vernon Hills Boys Sectional(IL), 2013-05-17(#6) |
| B-400 | 7 | 52.14 | Pavlovich, Drew (Lake Zurich, IL) | North Suburban Conference Boys(IL), 2013-05-09(#5) |
| B-400 | 8 | 52.26 | Edwards, Michael (2016) (Zion-Benton Twnshp, IL) | Wanner Knights Invitational(IL), 2013-04-26(#10) |
| B-400 | 9 | 52.45 | Crump, Tredarius (Zion-Benton Twnshp, IL) | North Suburban Conference Boys(IL), 2013-05-09(#6) |
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| | | See more performances for B-400 | | |
