| Event | Rank | Mark | By | Meet |
| B-400 | 1 | 46.98 | Hall, Quincy (2016) (Raytown South, MO) (US#26) | MO Class 4 State Meet(MO), 2015-05-30(#1) |
| B-400 | 2 | 47.79 | Hardin, Kiante (2015) (Webb City, MO) (US#78) | MO Class 4 District 6(MO), 2015-05-16(#1) |
| | | National Elites above. State Elites below | | |
| B-400 | 3 | 48.27 | Goodwin, Taysean (2015) (Blue Springs, MO) | MO Class 5 Sectional 3(MO), 2015-05-23(#1) |
| B-400 | 4 | 48.45 | Clemons, Derick (2016) (Eureka, MO) | MO Class 5 Sectional 1 (MO), 2015-05-23(#1) |
| B-400 | 5 | 48.54 | Hughey, Eric (2016) (Lee's Summit North, MO) | KC Suburban Gold Conference Meet(MO), 2015-05-08(#2) |
| B-400 | 6 | 48.57 | Alade-fa, Lawan (2016) (Hazelwood Central, MO) | MO Class 5 State Meet(MO), 2015-05-30(#1) |
| B-400 | 7 | 48.71 | Bowen, Patrick (2016) (Rockhurst, MO) | USATF Junior Olympics National Championships 17-18(FL), 2015-08-02(#13) |
| B-400 | 8 | 48.83 | Meneh, Lezoghia (2016) (Lutheran South, MO) | MO Class 4 Sectional 1(MO), 2015-05-23(#1) |
| B-400 | 9 | 48.90 | Powell, Jerrick (2015) (Christian Brothers College, MO) | MO Class 5 State Meet(MO), 2015-05-30(#5) |
| B-400 | 10 | 48.94 | Miller, Michael (2015) (Mccluer South-Berkeley, MO) | Marion Freeman Invitational(MO), 2015-05-02(#1) |
| B-400 | 11 | 48.99 | Houston, Alvin (2015) (Lafayette, MO) | MO Class 5 District 2(MO), 2015-05-16(#1) |
| B-400 | 12 | 49.00 | Johnson, Joseph (2015) (Raytown South, MO) | MO Class 4 State Meet(MO), 2015-05-30(#3) |
| B-400 | 12 | 49.00 | Mensah, Ade (2017) (Lincoln College Prep., MO) | MO Class 3 State Meet(MO), 2015-05-30(#1) |
| B-400 | 14 | 49.02 | Ashford, Jayson (2017) (St. Louis University, MO) | MO Class 5 Sectional 1 (MO), 2015-05-23(#2) |
| B-400 | 15 | 49.21 | Cooper, Demontrae (2016) (Sumner, MO) | MO Class 3 State Meet(MO), 2015-05-30(#2) |
| B-400 | 16 | 49.40 | Guier, Charles (2016) (Smith-Cotton, MO) | West Central Conference Meet(MO), 2015-05-08(#1) |
| B-400 | 16 | 49.40 | McFadden, Asa (2015) (McCluer, MO) | MO Class 4 State Meet(MO), 2015-05-30(#4) |
| B-400 | 18 | 49.50 | Member-Meneh, Lezoghia (2016) (Lutheran South, MO) | Marion Freeman Invitational(MO), 2015-05-02(#2) |
| B-400 | 19 | 49.75 | Davis, Madison (2016) (Skyline, MO) | MO Class 2 Sectional 3(MO), 2015-05-16(#1) |
| B-400 | 19 | 49.75 | Martin, Kyren (2016) (McCluer, MO) | MO Class 4 State Meet(MO), 2015-05-30(#5) |
| B-400 | 21 | 49.79 | Siffre, Ife (2015) (O'Hara, MO) | West Central Conference Meet(MO), 2015-05-08(#2) |
| B-400 | 22 | 49.82 | Barrett, Edward (Columbia-Hickman, MO) | Battle Spartan Invitational(MO), 2015-05-02(#1) |
| B-400 | 23 | 49.86 | Johnson, Jonathan (2017) (College Heights Christian, MO) | MO Class 2 Sectional 3(MO), 2015-05-16(#2) |
| B-400 | 24 | 49.89 | Pfitzner, Levi (2015) (Monett, MO) | MO Class 4 State Meet(MO), 2015-05-30(#5) |
| B-400 | 25 | 49.93 | Booker, Vontrae (99) (Grandview, MO) | AAU Junior Olympics National Championships 15-16(VA), 2015-08-08(#12) |
| B-400 | 26 | 49.96 | Jackson, Jordan (2015) (Lee's Summit North, MO) | USATF JO Region 9 Qualifier(OK), 2015-07-12(#3) |
| B-400 | 27 | 49.97 | Hall, Justin (2016) (Hazelwood Central, MO) | Marion Freeman Invitational(MO), 2015-05-02(#2) |
| B-400 | 28 | 50.33 | Cole, Isaiah (2015) (Hazelwood West, MO) | AAU JO Region 15 Qualifier(MO), 2015-06-28(#5) |
| B-400 | 29 | 51.85 | Holt, Jermaine (2015) (Parkway North, MO) | AAU JO Region 15 Qualifier(MO), 2015-06-28(#9) |
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| | | See more performances for B-400 | | |
