| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-400 | 1 | 49.45 | Wilson, Varian (2015) (Nordhoff, CA) | CIF-SS Finals(CA), 2015-05-23(#1) |
| B-400 | 2 | 50.12 | Bentley, Bryce (2015) (St. Bernard, CA) | CIF-SS Finals(CA), 2015-05-23(#2) |
| B-400 | 3 | 50.20 | Goudeau, Stefon (2016) (Serra Gardena, CA) | Redondo Nike Invitational(CA), 2015-03-14(#5) |
| B-400 | 4 | 50.36 | Johnson, Tyron (2015) (Serra Gardena, CA) | Del Rey League Finals(CA), 2015-05-06(#2) |
| B-400 | 5 | 50.37 | Mccord, Cj (2015) (Sage Hill, CA) | CIF-SS Finals(CA), 2015-05-23(#3) |
| B-400 | 6 | 50.38 | Mackay, Clayton (2016) (Templeton, CA) | Russell Cup(CA), 2015-04-18(#2) |
| B-400 | 7 | 50.57 | Stabile, Daniel (2015) (Xavier Prep, CA) | CIF-SS Division 4 Prelims(CA), 2015-05-16(#3) |
| B-400 | 8 | 50.76 | Dixon, Darren (2016) (Crossroads, CA) | CIF-SS Division 4 Prelims(CA), 2015-05-16(#4) |
| B-400 | 9 | 50.87 | Hernandez, Chris (2015) (Webb, CA) | CIF-SS Division 4 Prelims(CA), 2015-05-16(#6) |
| B-400 | 10 | 50.91 | Chadwick, Benjamin (2015) (Thacher, CA) | Ventura County Championships(CA), 2015-05-01(#8) |
| B-400 | 11 | 50.96 | Hauser, Christian (2015) (Templeton, CA) | CIF-SS Division 4 Prelims(CA), 2015-05-16(#7) |
| B-400 | 12 | 51.01 | Meyer, Landis (2015) (Nordhoff, CA) | Nordhoff at Fillmore(CA), 2015-03-26 |
| B-400 | 13 | 51.53 | Geisler, Chasen (2018) (Oaks Christian, CA) | Oaks Christian at Thousand Oaks(CA), 2015-04-02(#1) |
| B-400 | 14 | 51.55 | Childs, Chance (2015) (Paraclete, CA) | CIF-SS Division 4 Prelims(CA), 2015-05-16(#10) |
| B-400 | 15 | 51.58 | Kunde, Cameron (2016) (Nordhoff, CA) | Carpinteria at Nordhoff(CA), 2015-04-28(#1) |
| B-400 | 16 | 51.79 | Orgill, Matt (2015) (Crean Lutheran, CA) | Irvine Invitational(CA), 2015-03-14(#3) |
| B-400 | 17 | 51.84 | Webster, London (2015) (Bell-Jeff, CA) | CIF-SS Division 4 Prelims(CA), 2015-05-16(#11) |
| B-400 | 18 | 52.00 | Airey, Cale (2016) (Laguna Beach, CA) | Orange Coast League Finals(CA), 2015-05-07(#1) |
| B-400 | 19 | 52.03 | Allyn, Spencer (2016) (Campbell Hall, CA) | CIF-SS Division 4 Prelims(CA), 2015-05-16(#12) |
| B-400 | 20 | 52.04 | Hanel, Dylan (2016) (Pasadena Poly, CA) | CIF-SS Division 4 Prelims(CA), 2015-05-16(#13) |
| B-400 | 21 | 52.08 | Renton, Jack (2017) (Sage Hill, CA) | Orange County Championships(CA), 2015-04-25(#5) |
| B-400 | 22 | 52.09 | Jones, Edward (Muir, CA) | Monrovia Wildcats Relays (CA), 2015-03-14(#6) |
| B-400 | 23 | 52.11 | Gonzalez, Damien (2015) (Fillmore, CA) | Ventura County Championships(CA), 2015-05-01(#17) |
| B-400 | 24 | 52.16 | Daley, Lloyd (2015) (Nuview Bridge Academy, CA) | South Valley League Meet #5(CA), 2015-04-18(#1) |
| B-400 | 25 | 52.18 | Serugo, Joel (2016) (Cate, CA) | Frontier League Meet #3(CA), 2015-04-30(#1) |
| B-400 | 25 | 52.18 | Barrios, Josh (2015) (Nipomo, CA) | CIF-SS Division 4 Prelims(CA), 2015-05-16(#15) |
| B-400 | 27 | 52.21 | Powers, Michael (2017) (St. Joseph, CA) | PAC 8 League Finals(CA), 2015-05-07(#4) |
| B-400 | 28 | 52.22 | Smith, Wesley (2016) (Notre Dame, CA) | CIF-SS Division 4 Prelims(CA), 2015-05-16(#16) |
| B-400 | 29 | 52.28 | Cornejo, Aaron (Fillmore, CA) | Russell Cup(CA), 2015-04-18(#5) |
| B-400 | 30 | 52.34 | Anderson, Aaron (2015) (Oaks Christian, CA) | Oaks Christian at Thousand Oaks(CA), 2015-04-02(#3) |
| B-400 | 31 | 52.39 | Cook, Joe (2015) (St. Bonaventure, CA) | La Reina and St. Bonaventure at La Reina(CA), 2015-04-01(#2) |
| B-400 | 32 | 52.45 | Chong, Dillon (2017) (Oaks Christian, CA) | Marmonte League Prelims(CA), 2015-05-05(#10) |
| B-400 | 33 | 52.49 | Marshall, Kalen (2016) (Blair, CA) | Monrovia Wildcats Relays (CA), 2015-03-14(#8) |
| B-400 | 33 | 52.49 | Jones, Eddie (2016) (Muir, CA) | San Gabriel Valley Championships(CA), 2015-04-25(#16) |
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| | | See more performances for B-400 | | |
