| Event | Rank | Mark | By | Meet |
| B-400 | 1 | 45.99 | Walton, Jamal (2018) (Everglades, FL) (US#5) | IAAF World Youth Championships(IT), 2015-07-19(#4) |
| B-400 | 2 | 46.60 | Cogdell, Ari (2015) (American, FL) (US#13) | FL 4A Region 4(FL), 2015-04-21(#1) |
| B-400 | 3 | 46.90 | Smith, Jamari (2015) (Dr. Phillips, FL) (US#23) | FL 4A State Meet(FL), 2015-05-02(#2) |
| B-400 | 4 | 47.30 | Tatham, Rasheed (2015) (St. Thomas Aquinas, FL) (US#40) | Golden South Classic(FL), 2015-05-23(#3) |
| B-400 | 5 | 47.61 | Williams, Shammond (2016) (American, FL) (US#56) | FL 4A State Meet(FL), 2015-05-02(#3) |
| B-400 | 6 | 47.88 | Johnson, Tyler (2015) (Miami Southridge, FL) (US#93) | FL 4A Region 4(FL), 2015-04-21(#1) |
| B-400 | 7 | 48.15 | Lawson, Alex (2015) (McArthur, FL) | FL 4A State Meet(FL), 2015-05-02(#4) |
| B-400 | 8 | 48.16 | Dean, Javaonte (2015) (South Dade, FL) | FL 4A Region 4(FL), 2015-04-21(#3) |
| B-400 | 9 | 48.17 | Hollis, Kyren (2015) (Olympia, FL) | Bob Hayes Classic(FL), 2015-03-21(#1) |
| B-400 | 9 | 48.17 | Burnett, Vanzel (2016) (Nova, FL) | FL 4A Region 4(FL), 2015-04-21(#5) |
| | | National Elites above. State Elites below | | |
| B-400 | 11 | 48.21 | Mcclain, Hilton (2016) (Royal Palm Beach, FL) | FL 4A Region 3(FL), 2015-04-22(#1) |
| B-400 | 12 | 48.41 | Simmons, Akeem (2015) (Colonial, FL) | FL 4A Region 1(FL), 2015-04-23(#2) |
| B-400 | 13 | 48.50 | Davis, Robert (2015) (Countryside, FL) | Steinbrenner Invitational(FL), 2015-03-21(#1) |
| B-400 | 14 | 48.59 | Halliday, Zachary (2016) (Lake Brantley, FL) | FL 4A Region 1(FL), 2015-04-23(#3) |
| B-400 | 15 | 48.65 | Parkinson, Jovane (2015) (St. Cloud, FL) | FL 4A State Meet(FL), 2015-05-02(#7) |
| B-400 | 16 | 48.73 | Busch, Nicholas (2015) (University, FL) | FL 4A Region 1(FL), 2015-04-23(#4) |
| B-400 | 17 | 48.79 | Smith, Rakaris (2015) (Lake Worth, FL) | FL 4A District 11(FL), 2015-04-15(#1) |
| B-400 | 18 | 49.00 | Nock, Maurice (2016) (Seminole, FL) | Seminole Athletic Conference Championships(FL), 2015-03-12(#1) |
| B-400 | 19 | 49.05 | Ferguson, Antonio (2015) (South Dade, FL) | Dade County Youth Fair(FL), 2015-04-04(#2) |
| B-400 | 20 | 49.09 | Ortiz, Leo (2015) (Colonial, FL) | FL 4A Region 1(FL), 2015-04-23(#5) |
| B-400 | 20 | 49.09 | Turner, James (Boone, FL) | Brian Jaeger Elite Classic(FL), 2015-03-14(#3) |
| B-400 | 22 | 49.15 | Speer, Haden (2015) (Fleming Island, FL) | FL 4A Region 1(FL), 2015-04-23(#5) |
| B-400 | 23 | 49.17 | Williams, Marcel (2015) (Flagler Palm Coast, FL) | FL 4A Region 1(FL), 2015-04-23(#4) |
| B-400 | 24 | 49.21 | Hylton, Dawun (2016) (American, FL) | Golden South Classic(FL), 2015-05-23(#6) |
| B-400 | 25 | 49.28 | Treasure, Juvon (2016) (Apopka, FL) | FL 4A District 2(FL), 2015-04-15(#2) |
| B-400 | 26 | 49.48 | Culpepper, Naytron (2017) (American, FL) | FL 4A Region 4(FL), 2015-04-21(#7) |
| B-400 | 26 | 49.48 | Owens, Jason (2017) (Gateway, FL) | FL 4A Region 2(FL), 2015-04-22(#3) |
| B-400 | 28 | 49.51 | Culpper, Naytron (2017) (American, FL) | Hallandale Invitational(FL), 2015-03-07(#4) |
| B-400 | 29 | 49.61 | Mc Enery, Christopher (2016) (Palm Beach Central, FL) | Palm Beach County Western Championships(FL), 2015-03-24(#2) |
| B-400 | 30 | 49.63 | Woods, Cameron (2017) (Newsome, FL) | FL 4A Region 2(FL), 2015-04-22(#3) |
| B-400 | 31 | 49.75 | Vendrone, Andrew (2016) (Sickles, FL) | FL 4A Region 2(FL), 2015-04-22(#4) |
| B-400 | 32 | 49.78 | Allen, Tyler (2016) (Dr Krop, FL) | Golden South Classic(FL), 2015-05-23(#2) |
| B-400 | 33 | 49.80 | Macon, Michael (Dr. Phillips, FL) | FL 4A District 4(FL), 2015-04-16(#6) |
| B-400 | 34 | 49.82 | Shaw, Kris (2015) (Deerfield Beach, FL) | FL 4A Region 3(FL), 2015-04-22(#5) |
| B-400 | 35 | 49.90 | Moultrie, Derwin (2016) (Coral Reef, FL) | Dade County Youth Fair(FL), 2015-04-04(#3) |
| B-400 | 35 | 49.90 | Williams, Jamarcus (2015) (Oak Ridge, FL) | Metro Conference Championships(FL), 2015-03-19(#5) |
| B-400 | 37 | 49.99 | Pacifico, Justin (2016) (Flagler Palm Coast, FL) | UNF Spring Break Invitational(FL), 2015-03-27(#3) |
| B-400 | 38 | 50.03 | Brown, Justin (2017) (St. Thomas Aquinas, FL) | FL 4A District 13(FL), 2015-04-15(#3) |
| B-400 | 39 | 50.04 | georges, justin (2017) (Dr Krop, FL) | FL 4A District 15(FL), 2015-04-15(#5) |
| B-400 | 40 | 50.05 | Taylor, Elliot (2015) (North Miami , FL) | FL 4A District 15(FL), 2015-04-15(#2) |
| B-400 | 41 | 50.11 | Williams, Tremaine (2015) (Vero Beach, FL) | Walt Disney World Open(FL), 2015-03-21(#2) |
| B-400 | 42 | 50.14 | Bilton, Sawyer (2015) (Boca Raton, FL) | Southridge Spartan Invitational(FL), 2015-02-28(#4) |
| B-400 | 43 | 50.24 | Mc Enery, Christop (2016) (Palm Beach Central, FL) | Walt Disney World Open(FL), 2015-03-21(#3) |
| B-400 | 44 | 50.25 | Butler, Daeqwan (2018) (Piper, FL) | FL 4A District 13(FL), 2015-04-15(#4) |
| B-400 | 45 | 50.28 | Wilson, Rondarian (Atlantic, FL) | USATF JO Region 16 Qualifier(FL), 2015-07-12(#2) |
| B-400 | 46 | 50.31 | Lake, Clarence (2018) (Wekiva, FL) | FL 4A Region 1(FL), 2015-04-23(#8) |
| B-400 | 47 | 50.32 | Crider, James (2015) (Apopka, FL) | Metro Conference Championships(FL), 2015-03-19(#3) |
| B-400 | 48 | 50.37 | Dacosta Moore, Damani (2017) (Olympia, FL) | FL 4A District 3(FL), 2015-04-16(#1) |
| B-400 | 49 | 50.39 | Exavier, Wiscardy (2016) (Olympia, FL) | FL 4A District 3(FL), 2015-04-16(#2) |
| B-400 | 50 | 50.40 | Mccutchen, Coby (2016) (George Jenkins, FL) | FL 4A District 5(FL), 2015-04-15(#2) |
| B-400 | 51 | 50.41 | Sajous, Mark (2015) (Santaluces, FL) | FL 4A Region 3(FL), 2015-04-22(#7) |
| B-400 | 52 | 50.45 | Reid, Newton (2016) (South Plantation, FL) | BCAA South Qualifier(Fl), 2015-03-18(#3) |
| B-400 | 53 | 50.49 | Buckhalter, Nathaniel (2015) (Hagerty, FL) | Seminole Athletic Conference Championships(FL), 2015-03-12(#3) |
| B-400 | 54 | 50.50 | Davis, Ian (2018) (Western, FL) | Miramar Relays(FL), 2015-03-28(#3) |
| B-400 | 55 | 50.54 | Johnson, Dre'quan (2015) (Coral Gables, FL) | FL 4A District 15(FL), 2015-04-15(#6) |
| B-400 | 56 | 50.56 | Davis, Terrance (2017) (Kathleen, FL) | FL 3A Region 2(FL), 2015-04-22(#3) |
| B-400 | 57 | 50.58 | Green, Dominic (2017) (Flagler Palm Coast, FL) | Bolles Bulldog Classic(FL), 2015-03-06(#1) |
| B-400 | 58 | 50.70 | Green, Randy (2016) (Plantation, FL) | FL 4A District 13(FL), 2015-04-15(#5) |
| B-400 | 59 | 50.71 | Coffie, Justin (2015) (Riverview, FL) | Steinbrenner Invitational(FL), 2015-03-21(#6) |
| B-400 | 60 | 50.72 | Bullard, Kareem (2015) (American, FL) | Louie Bing Classic(FL), 2015-02-21(#8) |
| B-400 | 61 | 50.73 | Vigo, A.J. (2015) (Coral Reef, FL) | FL 4A District 16(FL), 2015-04-11(#3) |
| B-400 | 62 | 50.77 | Khouri, Nicholas (2015) (Dr Krop, FL) | FL 4A District 15(FL), 2015-04-15(#7) |
| B-400 | 62 | 50.77 | Hogan, Emare (2017) (Dr. Phillips, FL) | Metro Conference Championships(FL), 2015-03-19(#5) |
| B-400 | 64 | 50.83 | Addison, Myles (2016) (Seminole Ridge, FL) | USATF JO Region 16 Qualifier(FL), 2015-07-12(#11) |
| B-400 | 64 | 50.83 | Brown, Chris (2016) (West Orange, FL) | Seminole Open(FL), 2015-02-21(#2) |
| B-400 | 66 | 50.86 | Khinit, Malak (2016) (Timber Creek, FL) | FL 4A District 4(FL), 2015-04-16(#8) |
| B-400 | 67 | 50.88 | Henderson, Christopher (2017) (Columbus, FL) | GMAC South(FL), 2015-03-11(#3) |
| B-400 | 68 | 50.90 | Thyme, Tyreek (2017) (Lyman, FL) | Seminole Athletic Conference Championships(FL), 2015-03-12(#4) |
| B-400 | 69 | 50.92 | Avril, Markaly (2015) (Nova, FL) | FL 4A District 14(FL), 2015-04-17(#2) |
| B-400 | 70 | 50.96 | Springhoff, Jose (2015) (Lake Nona, FL) | FL 3A District 6(FL), 2015-04-16(#1) |
| B-400 | 71 | 50.98 | Johnson, Cole (2016) (Olympia, FL) | FL 4A Region 1(FL), 2015-04-23(#9) |
| B-400 | 72 | 50.99 | Henderson, Robert (2015) (Dr Krop, FL) | FL 4A District 15(FL), 2015-04-15(#3) |
| B-400 | 73 | 51.03 | Taylor, Javrick (2016) (Monarch, FL) | FL 4A District 12(FL), 2015-04-14(#3) |
| B-400 | 74 | 51.08 | Wood, Trey (2015) (Coral Reef, FL) | Big Blue Invitational(FL), 2015-03-07(#1) |
| B-400 | 75 | 51.09 | Shuler, Daymein (2015) (Atlantic, FL) | Palm Beach County Championships(FL), 2015-04-01(#4) |
| B-400 | 76 | 51.14 | Torgbede, Brian (2015) (West Broward, FL) | FL 4A District 14(FL), 2015-04-17(#3) |
| B-400 | 77 | 51.15 | Dorval, Ruby (2017) (Boca Raton, FL) | FL 4A District 11(FL), 2015-04-15(#3) |
| B-400 | 78 | 51.18 | Dallas, Thomas (Wekiva, FL) | Seminole Elite Invitational(FL), 2015-03-28(#7) |
| B-400 | 78 | 51.18 | Jolly, Patrick (2018) (Newsome, FL) | AAU JO Region 9 Qualifier - Tallahassee(FL), 2015-06-28(#3) |
| B-400 | 78 | 51.18 | Ulysse, Ron (2016) (Atlantic, FL) | Royal Palm Beach Invitational 2(FL), 2015-04-09(#3) |
| B-400 | 81 | 51.24 | Melson, William (2016) (East Ridge, FL) | Lake-Sumter County Championships(FL), 2015-03-26(#1) |
| B-400 | 82 | 51.26 | Vega, Devin (2017) (Gateway, FL) | FL 4A District 5(FL), 2015-04-15(#2) |
| B-400 | 83 | 51.29 | Tweedy, Jonathan (2016) (West Port, FL) | FL 4A District 3(FL), 2015-04-16(#4) |
| B-400 | 84 | 51.30 | Westry, Christopher (2015) (Oakleaf, FL) | Friday Knight Invite(FL), 2015-03-13(#2) |
| B-400 | 85 | 51.32 | Ramsay, Robert (Plantation, FL) | USATF JO Region 16 Qualifier(FL), 2015-07-12(#5) |
| B-400 | 85 | 51.32 | Vandenburg, Kelson (2015) (Evans, FL) | Osceola Kowboy Invitational(FL), 2015-03-14(#6) |
| B-400 | 87 | 51.33 | Kodzi, Papaa (2016) (Oviedo, FL) | FL 4A District 2(FL), 2015-04-15(#6) |
| B-400 | 88 | 51.34 | Pierre, Markendy (2016) (Oak Ridge, FL) | Golden South Classic(FL), 2015-05-23(#2) |
| B-400 | 88 | 51.34 | Bibbs, Derran (2015) (Deland, FL) | FL 4A District 2(FL), 2015-04-15(#7) |
| B-400 | 90 | 51.40 | Jackson, Darius (2016) (Boone, FL) | FL 4A District 4(FL), 2015-04-16(#10) |
| B-400 | 91 | 51.42 | Lampley, Christopher (Countryside, FL) | Ed Wells Kiwanis Invitational(FL), 2015-03-13(#4) |
| B-400 | 92 | 51.43 | Watts, Orbie (2015) (Wharton, FL) | FL 4A District 6(FL), 2015-04-15(#2) |
| B-400 | 93 | 51.49 | Davis, Elgin (2015) (Boca Raton, FL) | Southridge Spartan Invitational(FL), 2015-02-28(#15) |
| B-400 | 94 | 51.52 | Scheuneman, Ryan (43) (Oakleaf, FL) | FL 3A District 4(FL), 2015-04-14(#3) |
| B-400 | 94 | 51.52 | Tillman, Wayne (2016) (Coral Springs, FL) | FL 4A District 12(FL), 2015-04-14(#6) |
| B-400 | 96 | 51.54 | Gruber, Jonathan (2016) (Western, FL) | Miramar Relays(FL), 2015-03-28(#6) |
| B-400 | 96 | 51.54 | Sanchez, Juan (Ferguson, FL) | Belen Unlimited(FL), 2015-04-01(#1) |
| B-400 | 98 | 51.56 | Taylor, Tre'On (2016) (Winter Park, FL) | FL 4A District 4(FL), 2015-04-16(#11) |
| B-400 | 99 | 51.58 | Reynolds, Lance (2017) (Viera, FL) | FL 4A Region 3(FL), 2015-04-22(#10) |
| B-400 | 100 | 51.59 | Volmar, Johns (2016) (Freedom, FL) | Osceola Kowboy Invitational(FL), 2015-03-14(#10) |
| B-400 | 101 | 51.60 | Cesalien, Olesson (Evans, FL) | Lake Brantley Developmental Meet 3(FL), 2015-03-25(#1) |
| B-400 | 102 | 51.69 | Howell, Melvin (2017) (Fort Lauderdale, FL) | FL 4A District 13(FL), 2015-04-15(#7) |
| B-400 | 103 | 51.72 | Arrieta, Samuel (Lake Brantley, FL) | Seminole Athletic Conference Championships(FL), 2015-03-12(#5) |
| B-400 | 104 | 51.73 | Allen, Lorenz (2016) (Manatee, FL) | FL 4A District 8(FL), 2015-04-16(#2) |
| B-400 | 105 | 51.76 | Paul, Brian (2015) (Atlantic, FL) | Suncoast Invite #2(FL), 2015-03-10(#2) |
| B-400 | 106 | 51.77 | Durrant, Trevor (2015) (North Port, FL) | Sarasota County Championships(FL), 2015-04-02(#2) |
| B-400 | 107 | 51.78 | Cameron, Isaiah (2015) (Alonso, FL) | FL 4A District 6(FL), 2015-04-15(#3) |
| B-400 | 108 | 51.79 | Shelton, Robby (2016) (West Port, FL) | FL 4A District 3(FL), 2015-04-16(#5) |
| B-400 | 108 | 51.79 | Adolphson, Alex (2016) (Countryside, FL) | Calvary Invitational(FL), 2015-03-06(#3) |
| B-400 | 110 | 51.83 | Lampley, Christoph (2015) (Countryside, FL) | FL 4A District 8(FL), 2015-04-16(#1) |
| B-400 | 111 | 51.84 | Williams, Julian (2016) (Columbus, FL) | FL 4A District 16(FL), 2015-04-11(#4) |
| B-400 | 111 | 51.84 | Lemon, Christopher (2015) (Seminole, FL) | Seminole Open(FL), 2015-02-21(#4) |
| B-400 | 113 | 51.86 | Wright, Justin (2016) (St. Thomas Aquinas, FL) | Louie Bing Classic(FL), 2015-02-21(#15) |
| B-400 | 113 | 51.86 | Figgins, Jasean (2015) (George M. Steinbrenner, FL) | Steinbrenner Invitational(FL), 2015-03-21(#13) |
| B-400 | 115 | 51.90 | Osinga, Jonathan (2015) (North Port, FL) | Wally Keller Invitational(FL), 2015-03-28(#2) |
| B-400 | 116 | 51.92 | Turner, Kevin (2015) (American, FL) | Hallandale Invitational(FL), 2015-03-07(#18) |
| B-400 | 117 | 51.96 | Odom, Eric (2015) (Robert E. Lee, FL) | FL 3A District 3(FL), 2015-04-14(#6) |
| B-400 | 117 | 51.96 | Hill, Dawson (2018) (South Plantation, FL) | BCAA South Qualifier(Fl), 2015-03-18(#8) |
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