| Event | Rank | Mark | By | Meet |
| B-400 | 1 | 47.13 | Oliver, Isaiah (2015) (Brophy Prep, AZ) (US#33) | AMDG Invitational(AZ), 2015-03-13(#1) |
| B-400 | 2 | 47.60 | Ross, Tavian (2016) (Tucson Magnet, AZ) (US#55) | Great Southwest Classic(NM), 2015-06-06(#5) |
| B-400 | 3 | 48.15 | Lucas, Paul (2015) (Mountain Pointe, AZ) | AMDG Invitational(AZ), 2015-03-13(#2) |
| B-400 | 4 | 48.19 | Williams, Maj (2017) (Horizon, AZ) | AZ D1 State Meet(AZ), 2015-05-09(#2) |
| | | National Elites above. State Elites below | | |
| B-400 | 5 | 48.29 | Ross, Tavian (16) (Unattached, AZ) | USATF JO Region 10 Qualifier(TX), 2015-07-12(#1) |
| B-400 | 6 | 48.58 | Mills, Oscar (2015) (Sandra Day, AZ) | AZ D1 State Meet(AZ), 2015-05-09(#3) |
| B-400 | 7 | 48.86 | Poe, Alex (2015) (Tolleson Union, AZ) | AZ D2 State Meet(AZ), 2015-05-09(#1) |
| B-400 | 8 | 48.88 | Egbo, Daniel (2015) (Highland, AZ) | Sun Angel Classic(AZ), 2015-04-11(#2) |
| B-400 | 9 | 48.95 | Zuluaga, Luke (2016) (Seton Catholic, AZ) | Hal Anders Invitational (AZ), 2015-04-11(#1) |
| B-400 | 10 | 48.98 | Jones, Delano (2015) (Tempe, AZ) | AZ D2 State Meet(AZ), 2015-05-09(#2) |
| B-400 | 11 | 49.12 | Jeffcoat, Jerome (2016) (Maryvale, AZ) | PUHSD Championships(AZ), 2015-04-22(#1) |
| B-400 | 12 | 49.13 | Bell, Zach (2016) (Mesquite, AZ) | AZ D1 State Meet(AZ), 2015-05-09(#4) |
| B-400 | 13 | 49.23 | Usevitch, Seth (2016) (Mesquite, AZ) | Sun Angel Classic(AZ), 2015-04-11(#3) |
| B-400 | 14 | 49.28 | James, Xavier (2016) (Verrado, AZ) | AZ D2 State Meet(AZ), 2015-05-09(#3) |
| B-400 | 15 | 49.30 | Summerset, Justice (2016) (Mountain View Mesa, AZ) | Southern Arizona Championships(AZ), 2015-04-24(#2) |
| B-400 | 16 | 49.47 | Bender, Ryan (2017) (Desert Vista, AZ) | AZ D1 State Meet(AZ), 2015-05-09(#6) |
| B-400 | 17 | 49.55 | Bybee, Robert (2015) (Buckeye Union, AZ) | AZ D3 State Meet(AZ), 2015-05-09(#2) |
| B-400 | 18 | 49.78 | Bankston, Quinten (2015) (O'Connor, AZ) | Northwest Region Championships(AZ), 2015-04-27(#1) |
| B-400 | 19 | 49.94 | Moulton, Tyrees (2018) (North Canyon, AZ) | AZ Meet of Champions(AZ), 2015-05-13(#4) |
| B-400 | 20 | 49.95 | Melton, Chase (2015) (Rincon University, AZ) | AZ D1 State Meet(AZ), 2015-05-09(#8) |
| B-400 | 21 | 50.74 | La, Tanner De (2016) (Basha, AZ) | Desert Classic(AZ), 2015-03-06(#1) |
| B-400 | 22 | 51.19 | Clawson, Trevor (2015) (Payson, AZ) | Desert Classic(AZ), 2015-03-06(#2) |
| B-400 | 23 | 51.31 | Arnett, Tanner (2015) (Mountain View Mesa, AZ) | Toro Relays(AZ), 2015-03-06(#1) |
| B-400 | 24 | 51.43 | Webb, Kenneth (2015) (Red Mountain, AZ) | South Pasadena Tiger Invitational(CA), 2015-04-10(#6) |
| B-400 | 25 | 51.48 | Okwoli, John (2016) (North Canyon, AZ) | South Pasadena Tiger Invitational(CA), 2015-04-10(#7) |
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| | | See more performances for B-400 | | |
