| Event | Rank | Mark | By | Meet |
| B-600 | 1 | 1:22.76 | Moss, Ty (2015) (Neuqua Valley, IL) (US#37) | Proviso West Boys Invitational(IL), 2015-02-28(#1) |
| | | National Elites above. State Elites below | | |
| B-600 | 2 | 1:26.07 | Dowell, Bradley (2015) (Wheaton North, IL) | Proviso West Boys Invitational(IL), 2015-02-28(#3) |
| B-600 | 3 | 1:27.40 | Espinosa, Zac (2015) (Neuqua Valley, IL) | Morton Boys Meet #1(IL), 2015-02-13(#2) |
| B-600 | 4 | 1:29.00 | Bender, Kyle (2015) (Neuqua Valley, IL) | Morton Boys Meet #1(IL), 2015-02-13(#3) |
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| | | See more performances for B-600 | | |
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