| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-400 | 1 | 48.35 | Agyare-May, Rodney (2017) (Burncoat, MA) | MA MIAA All State Championships(MA), 2015-06-06(#1) |
| B-400 | 2 | 48.37 | Delasanta, Anthony (2016) (Bishop Feehan, MA) | MA MIAA All State Championships(MA), 2015-06-06(#2) |
| B-400 | 3 | 48.98 | Julien, Kingdolphe (2015) (Malden, MA) | MA East Division 1(MA), 2015-05-30(#1) |
| B-400 | 4 | 49.02 | Jewett, Chris (2015) (Woburn, MA) | MA MIAA All State Championships(MA), 2015-06-06(#4) |
| B-400 | 5 | 49.42 | Holt, Myles (2016) (Natick, MA) | New England Championships(ME), 2015-06-13(#6) |
| B-400 | 6 | 49.43 | Holt, Lucas (2016) (Natick, MA) | MA MIAA All State Championships(MA), 2015-06-06(#6) |
| B-400 | 7 | 49.62 | Moschella, Greg (2016) (St. John's High, MA) | MA Central/West Division 1(MA), 2015-05-30(#2) |
| B-400 | 8 | 49.66 | Naveed, Hamza (2015) (Andover, MA) | MA East Division 1(MA), 2015-05-30(#2) |
| B-400 | 9 | 49.73 | Gore, Jacob (2016) (Algonquin, MA) | MA MIAA All State Championships(MA), 2015-06-06(#8) |
| B-400 | 10 | 49.75 | Smith, Nick (2017) (Northampton, MA) | MA Central/West Division 1(MA), 2015-05-30(#3) |
| B-400 | 11 | 49.77 | Jenssen, Dean (2015) (Mansfield, MA) | MA MIAA All State Championships(MA), 2015-06-06(#9) |
| B-400 | 12 | 49.91 | Torres, Taj-Amir (2015) (Amherst-Pelham Regional, MA) | 10th Bloomfield Invitational(CT), 2015-04-11(#1) |
| B-400 | 13 | 49.98 | Hanwell, Andrew (2015) (North Attleborough, MA) | Hockomock League Championships(MA), 2015-05-21(#1) |
| B-400 | 14 | 49.99 | Trocki, Kyle (2015) (Shrewsbury, MA) | MA MIAA All State Championships(MA), 2015-06-06(#11) |
| B-400 | 15 | 50.00 | Nortonsmith, Avery (2015) (Northampton, MA) | Weston Twilight Invitational(MA), 2015-05-02(#1) |
| B-400 | 15 | 50.00 | Scarsdale, Nicholas (2015) (Innovation Academy Charter, MA) | MA East Division IV (MA), 2015-06-03(#1) |
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| | | See more performances for B-400 | | |
