| Event | Rank | Mark | By | Meet |
| B-400 | 1 | 47.03 | Mack, Ian (2015) (Green Valley, NV) (US#29) | NV D1 State Meet(NV), 2015-05-16(#1) |
| B-400 | 2 | 47.25 | Reid, Corey (2015) (Carson, NV) (US#37) | NV D1 State Meet(NV), 2015-05-16(#2) |
| B-400 | 3 | 47.29 | Ross, Connor (2015) (Mcqueen, NV) (US#39) | Northern Nevada D1 Regionals(NV), 2015-05-09(#2) |
| B-400 | 4 | 48.20 | Washington, Zakee (2016) (Palo Verde, NV) | AAU National Club Championships(FL), 2015-07-18(#2) |
| | | National Elites above. State Elites below | | |
| B-400 | 5 | 48.37 | Giron-Burnham, Ivan (2016) (Damonte Ranch, NV) | Northern Nevada D1 Regionals(NV), 2015-05-09(#3) |
| B-400 | 6 | 48.67 | Nobis, Austin (2015) (Bishop Gorman, NV) | Arcadia Invitational(CA), 2015-04-11(#2) |
| B-400 | 7 | 48.72 | Calvillo-Tatum, Amari (2016) (Valley, NV) | NV D1 Southern Regional Finals(NV), 2015-05-09(#2) |
| B-400 | 8 | 48.87 | Mireku, Joshua (2016) (Rancho, NV) | NV D1 Southern Regional Finals(NV), 2015-05-09(#3) |
| B-400 | 9 | 48.90 | Harley, Brandan (2015) (Centennial, NV) | Heitkotter Invitational(NV), 2015-03-14(#1) |
| B-400 | 10 | 48.93 | Sayles, Ronald (2015) (Arbor View, NV) | Arcadia Invitational(CA), 2015-04-11(#4) |
| B-400 | 11 | 49.04 | Davis, Kenric (2015) (Western, NV) | NV D1A State Meet(NV), 2015-05-16(#1) |
| B-400 | 12 | 49.29 | Harley, Tre (2018) (Centennial, NV) | Southern Nevada D1 Regional Prelims(NV), 2015-05-02(#5) |
| B-400 | 13 | 49.34 | Qualls, Kalin (2015) (Las Vegas, NV) | The Meadows Invitational(NV), 2015-04-11(#1) |
| B-400 | 14 | 49.38 | Brandon, Harley (Centennial, NV) | Mt. SAC Relays(CA), 2015-04-18(#7) |
| B-400 | 15 | 49.44 | Howland, A'Mari (2015) (Cimarron-Memorial, NV) | Las Vegas Track Classic(NV), 2015-03-28(#3) |
| B-400 | 16 | 49.49 | Turner, Keith (2015) (Centennial, NV) | Southern Nevada D1 Regional Prelims(NV), 2015-05-02(#6) |
| B-400 | 17 | 49.69 | Hansen, Porter (2015) (Reed, NV) | Northern Nevada D1 Regionals(NV), 2015-05-09(#4) |
| B-400 | 18 | 49.99 | Jubilee, Randall (2018) (Centennial, NV) | Southern Nevada D1 Regional Prelims(NV), 2015-05-02(#8) |
| B-400 | 19 | 51.35 | Butera, Vinny (2015) (Silverado, NV) | Beach Cities Invitational(CA), 2015-03-28(#7) |
| B-400 | 20 | 51.94 | Jackson, Elysha (2018) (Centennial, NV) | South Pasadena Tiger Invitational(CA), 2015-04-10(#1) |
| B-400 | 21 | 52.22 | Gomez-Barrios, Hector (2016) (Carson, NV) | Rocklin Thunder Invitational (CA), 2015-04-11(#10) |
| B-400 | 22 | 52.27 | Hines, Jacob (2017) (Reno, NV) | Del Oro Invite(CA), 2015-04-17(#5) |
| B-400 | 23 | 52.34 | Mwirigi, Kode (2015) (Las Vegas, NV) | Mt. SAC Relays Multis(CA), 2015-05-31(#2) |
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| | | See more performances for B-400 | | |
