Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
B-400 | 1 | 49.04 | Dixon, Ari (2016) (Bolles, FL) | FL 2A Region 1(FL), 2015-04-21(#1) |
B-400 | 2 | 49.14 | Brown, Chris (2015) (Episcopal, FL) | FL 2A Region 1(FL), 2015-04-21(#1) |
B-400 | 3 | 49.48 | Johnson, Damond (2017) (West Florida, FL) | FL 2A Region 1(FL), 2015-04-21(#2) |
B-400 | 4 | 50.16 | Washington, Murray (2016) (West Florida, FL) | FL 2A Region 1(FL), 2015-04-21(#2) |
B-400 | 5 | 50.21 | Duncan, Jonathan (2017) (Florida High, FL) | FL 2A Region 1(FL), 2015-04-21(#4) |
B-400 | 6 | 50.34 | Grier, Larry (2018) (Raines, FL) | FL 2A District 3(Fl), 2015-04-16(#1) |
B-400 | 7 | 50.48 | Jackson, Javen (2016) (West Florida, FL) | Panhandle Championships(FL), 2015-03-21(#5) |
B-400 | 8 | 50.71 | Williams, Tadric (2016) (Florida High, FL) | Tariq Barfield Invitational(FL), 2015-03-11(#2) |
B-400 | 9 | 51.23 | Dawson, Byron (Marianna, FL) | FL 2A District 2(FL), 2015-04-10(#1) |
B-400 | 10 | 51.26 | Hill, Sean (2015) (Wakulla, FL) | FSU Relays - Friday(FL), 2015-03-26(#10) |
B-400 | 11 | 51.41 | Reynolds, Matthew (2015) (Pensacola Catholic, FL) | FL 2A Region 1(FL), 2015-04-21(#10) |
B-400 | 12 | 51.49 | Flemings, Devonte (2015) (Rickards, FL) | FSU Relays - Friday(FL), 2015-03-26(#12) |
B-400 | 13 | 51.51 | Friis, Christian (2016) (South Walton, FL) | Seahawks Open(FL), 2015-02-14(#2) |
B-400 | 14 | 51.62 | Walker, Collin (2015) (Episcopal, FL) | FL 2A Region 1(FL), 2015-04-21(#12) |
B-400 | 15 | 51.81 | Stevens, Solomon (2016) (Rickards, FL) | FSU Relays - Friday(FL), 2015-03-26(#16) |
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| | | See more performances for B-400 | | |