| Event | Rank | Mark | By | Meet |
| B-400 | 1 | 47.68 | Daniels, Deandre (2015) (Goose Creek, SC) (US#65) | Taco Bell Classic(SC), 2015-04-11(#1) |
| B-400 | 2 | 47.77 | Grate, Malik (2016) (Pendleton, SC) (US#77) | SC 2A State Meet(SC), 2015-05-16(#1) |
| B-400 | 3 | 48.02 | Pride, Troy (2016) (Riverside, SC) | SC 3A State Meet(SC), 2015-05-16(#1) |
| B-400 | 4 | 48.03 | Sherman, J.J. (2015) (Waccamaw, SC) | SC 2A State Meet(SC), 2015-05-16(#2) |
| | | National Elites above. State Elites below | | |
| B-400 | 5 | 48.31 | Richardson, Tevin (2017) (Calhoun Falls, SC) | SC 1A State Meet(SC), 2015-05-16(#1) |
| B-400 | 6 | 48.34 | Wilkerson, Braylon (2015) (Summerville, SC) | Golden South Classic(FL), 2015-05-23(#2) |
| B-400 | 7 | 48.35 | Richard, Tyrell (2015) (Carvers Bay, SC) | SC 1A State Meet(SC), 2015-05-16(#2) |
| B-400 | 8 | 49.25 | Simmons, Malcolm (2015) (Beaufort, SC) | SC 3A State Meet(SC), 2015-05-16(#2) |
| B-400 | 9 | 49.61 | Talbert, Jeramiah (2018) (Southside, SC) | SC 3A State Meet(SC), 2015-05-16(#3) |
| B-400 | 10 | 49.66 | Mingo, Miles (2017) (Northwestern, SC) | SC 4A State Meet(SC), 2015-05-16(#3) |
| B-400 | 11 | 49.70 | Fuller, Devonte (West Ashley, SC) | NB Outdoor Nationals - Freshman(NC), 2015-06-20(#1) |
| B-400 | 12 | 49.77 | Bellamy, Jelin (2016) (St. James, SC) | SC 3A State Meet(SC), 2015-05-16(#4) |
| B-400 | 13 | 49.88 | McNeil, Devin (2016) (Union, SC) | SC 3A State Meet(SC), 2015-05-16(#5) |
| B-400 | 14 | 49.93 | Johnson, Kenneth (2015) (Dreher, SC) | SC 3A State Meet(SC), 2015-05-16(#6) |
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| | | See more performances for B-400 | | |
