| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-400 | 1 | 48.50 | Davis, Robert (2015) (Countryside, FL) | Steinbrenner Invitational(FL), 2015-03-21(#1) |
| B-400 | 2 | 48.65 | Parkinson, Jovane (2015) (St. Cloud, FL) | FL 4A State Meet(FL), 2015-05-02(#7) |
| B-400 | 3 | 49.48 | Owens, Jason (2017) (Gateway, FL) | FL 4A Region 2(FL), 2015-04-22(#3) |
| B-400 | 4 | 49.63 | Woods, Cameron (2017) (Newsome, FL) | FL 4A Region 2(FL), 2015-04-22(#3) |
| B-400 | 5 | 49.75 | Vendrone, Andrew (2016) (Sickles, FL) | FL 4A Region 2(FL), 2015-04-22(#4) |
| B-400 | 6 | 50.40 | Mccutchen, Coby (2016) (George Jenkins, FL) | FL 4A District 5(FL), 2015-04-15(#2) |
| B-400 | 7 | 50.56 | Davis, Terrance (2017) (Kathleen, FL) | FL 3A Region 2(FL), 2015-04-22(#3) |
| B-400 | 8 | 50.71 | Coffie, Justin (2015) (Riverview, FL) | Steinbrenner Invitational(FL), 2015-03-21(#6) |
| B-400 | 9 | 51.18 | Jolly, Patrick (2018) (Newsome, FL) | AAU JO Region 9 Qualifier - Tallahassee(FL), 2015-06-28(#3) |
| B-400 | 10 | 51.26 | Vega, Devin (2017) (Gateway, FL) | FL 4A District 5(FL), 2015-04-15(#2) |
| B-400 | 11 | 51.42 | Lampley, Christopher (Countryside, FL) | Ed Wells Kiwanis Invitational(FL), 2015-03-13(#4) |
| B-400 | 12 | 51.43 | Watts, Orbie (2015) (Wharton, FL) | FL 4A District 6(FL), 2015-04-15(#2) |
| B-400 | 13 | 51.73 | Allen, Lorenz (2016) (Manatee, FL) | FL 4A District 8(FL), 2015-04-16(#2) |
| B-400 | 14 | 51.77 | Durrant, Trevor (2015) (North Port, FL) | Sarasota County Championships(FL), 2015-04-02(#2) |
| B-400 | 15 | 51.78 | Cameron, Isaiah (2015) (Alonso, FL) | FL 4A District 6(FL), 2015-04-15(#3) |
| B-400 | 16 | 51.79 | Adolphson, Alex (2016) (Countryside, FL) | Calvary Invitational(FL), 2015-03-06(#3) |
| B-400 | 17 | 51.83 | Lampley, Christoph (2015) (Countryside, FL) | FL 4A District 8(FL), 2015-04-16(#1) |
| B-400 | 18 | 51.86 | Figgins, Jasean (2015) (George M. Steinbrenner, FL) | Steinbrenner Invitational(FL), 2015-03-21(#13) |
| B-400 | 19 | 51.90 | Osinga, Jonathan (2015) (North Port, FL) | Wally Keller Invitational(FL), 2015-03-28(#2) |
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| | | See more performances for B-400 | | |
