| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-SMR | 1 | 3:43.09 | Boys Relay (Mascoutah, IL) | Marion Relays(IL), 2015-05-01(#2) |
| B-SMR | 2 | 3:43.31 | Boys Relay (Mount Vernon, IL) | Marion Relays(IL), 2015-05-01(#3) |
| B-SMR | 3 | 3:44.13 | Boys Relay (Harrisburg, IL) | Marion Relays(IL), 2015-05-01(#4) |
| B-SMR | 4 | 3:45.29 | Boys Relay (Vernon Hills, IL) | Al Janulis Relays(IL), 2015-04-18(#2) |
| B-SMR | 5 | 3:46.25 | Boys Relay (Centralia, IL) | Marion Relays(IL), 2015-05-01(#5) |
| B-SMR | 6 | 3:46.38 | Boys Relay (Highland, IL) | O'Fallon Relays(IL), 2015-04-03(#1) |
| B-SMR | 7 | 3:46.69 | Boys Relay (Carbondale Comm, IL) | Marion Relays(IL), 2015-05-01(#6) |
| B-SMR | 8 | 3:48.28 | Boys Relay (Rock Falls Township, IL) | Sterling Night Relays(IL), 2015-05-01(#1) |
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| | | See more performances for B-SMR | | |
