| Event | Rank | Mark | By | Meet |
| B-400 | 1 | 47.54 | Schmidt, Brennan (2015) (Freeman, SD) (US#53) | SD Class B Championships(SD), 2015-05-30(#1) |
| | | National Elites above. State Elites below | | |
| B-400 | 2 | 48.60 | Sudbeck, Ned (2015) (Sioux Falls Lincoln, SD) | Howard Wood Dakota Relays(SD), 2015-05-02(#2) |
| B-400 | 3 | 49.44 | Bachmeier, Anthony (2016) (Aberdeen Central, SD) | Howard Wood Dakota Relays(SD), 2015-05-02(#4) |
| B-400 | 4 | 49.51 | Larson, Landon (2015) (Groton, SD) | Howard Wood Dakota Relays(SD), 2015-05-02(#5) |
| B-400 | 5 | 49.70 | Feterl, Isaiah (Sioux Falls Washington, SD) | Howard Wood Dakota Relays(SD), 2015-05-02(#6) |
| B-400 | 6 | 49.94 | Goehring, Josh (2016) (Sioux Falls Roosevelt, SD) | SD Class AA Championships(SD), 2015-05-30(#2) |
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| | | See more performances for B-400 | | |
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