| Event | Rank | Mark | By | Meet |
| B-Mile | 1 | 4:06.21 | Ryan, Paul (2015) (Logos, ID) (US#8) | Portland Track Festival(OR), 2015-06-14(#1) |
| B-Mile | 2 | 4:07.15 | Armstrong, Elijah (2015) (Pocatello, ID) (US#11) | Brian Young Invitational(AK), 2015-06-06(#2) |
| B-Mile | 3 | 4:08.28 | Slagowski, Michael (2016) (Rocky Mountain, ID) (US#16) | Brooks PR Invitational(WA), 2015-06-20(#3) |
| B-Mile | 4 | 4:16.84 | Fred, Austin (2015) (Middleton, ID) | Portland Track Festival(OR), 2015-06-14(#4) |
| B-Mile | 5 | 4:17.90 | Schaffeld, Jacob (2015) (Middleton, ID) | Portland Track Festival(OR), 2015-06-14(#5) |
| | | National Elites above. State Elites below | | |
| B-Mile | 6 | 4:21.13 | Babbel, Jonah (2015) (Vallivue, ID) | Nike Chandler Rotary Invitational(AZ), 2015-03-21(#5) |
| B-Mile | 7 | 4:22.38 | Wilkes, Porter (2016) (Vallivue, ID) | Nike Chandler Rotary Invitational(AZ), 2015-03-21(#8) |
| B-Mile | 8 | 4:23.43 | Matan, Siyad (2018) (Borah, ID) | Portland Track Festival(OR), 2015-06-14(#8) |
| B-Mile | 9 | 4:24.37 | Wiberg, Zach (2015) (Capital, ID) | Arcadia Invitational(CA), 2015-04-11(#6) |
| B-Mile | 10 | 4:24.60 | Little, Kyler (2015) (Lake City, ID) | Pasco Invitational(WA), 2015-04-18(#15) |
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| | | See more performances for B-Mile | | |
