| Event | Rank | Mark | By | Meet |
| B-1600 | 401 | 4:49.16 | Scott, Alec (2018) (Belvidere North, IL) | Antioch D117 Invitational(IL), 2015-02-28(#10) |
| B-1600 | 402 | 4:49.24 | Joaquin, Zach (2017) (Bradley-Bourbonnais, IL) | Southwest Suburban Boys Indoor Conference Meet(IL), 2015-03-21(#10) |
| B-1600 | 403 | 4:49.26 | Fiegl, Jack (2017) (Glenbard West, IL) | WSC-Silver Boys Indoor Conference Meet(IL), 2015-03-21(#10) |
| B-1600 | 404 | 4:49.27 | Caskey, Brian (2016) (Geneva, IL) | Batavia Distance Madness(IL), 2015-03-13(#19) |
| B-1600 | 405 | 4:49.28 | Redmond, Patrick (2015) (Batavia, IL) | Batavia Distance Madness(IL), 2015-03-13(#20) |
| B-1600 | 406 | 4:49.30 | McComb, Danny (2018) (West Chicago, IL) | Glenbard North Boys Invitational(IL), 2015-03-06(#4) |
| B-1600 | 406 | 4:49.30 | Tuttle, Jack (2015) (Benet Academy, IL) | Hinsdale Central Boys Open #2(IL), 2015-03-06(#4) |
| B-1600 | 408 | 4:49.41 | Caton, Justin (2016) (Waubonsie Valley, IL) | WWS Boys Triangular(IL), 2015-02-27(#4) |
| B-1600 | 409 | 4:49.60 | Wolfe, Creighton (2017) (York Community, IL) | Proviso West Boys Meet #2(IL), 2015-02-13(#1) |
| B-1600 | 409 | 4:49.60 | Ruiz, Julian (2017) (Warren Township, IL) | Glenbrook South Boys Meet #3(IL), 2015-03-13(#3) |
| B-1600 | 409 | 4:49.60 | Tomaska, Robert (2016) (York Community, IL) | York Boys Triangular(IL), 2015-02-25(#6) |
| B-1600 | 412 | 4:49.61 | Besson, Zach (2015) (Antioch, IL) | Antioch D117 Invitational(IL), 2015-02-28(#11) |
| B-1600 | 413 | 4:49.62 | Mongan, Jack (2017) (Brother Rice, IL) | Chicago Catholic League Indoor Championships(IL), 2015-03-21(#8) |
| B-1600 | 414 | 4:49.63 | Wright, Jacob (2016) (United Township, IL) | Galesburg Silver Streak Invitational(IL), 2015-03-21(#8) |
| B-1600 | 415 | 4:49.67 | Hiserote, Tyler (2016) (Limestone Community, IL) | Galesburg Silver Streak Invitational(IL), 2015-03-21(#9) |
| B-1600 | 416 | 4:49.70 | Eifler, Jake (2015) (Naperville North, IL) | Wheaton North Boys Quad(IL), 2015-02-12(#1) |
| B-1600 | 417 | 4:49.74 | Koch, Campbell (2018) (St. Charles East, IL) | Batavia Distance Madness(IL), 2015-03-13(#21) |
| B-1600 | 418 | 4:49.76 | Seo, Sang (2016) (Cary-Grove Community, IL) | Nelson Daniels Classic - Large Schools(WI), 2015-03-21(#14) |
| B-1600 | 419 | 4:49.77 | Del Toro, Ricardo (2017) (East Aurora, IL) | Upstate Eight Boys Indoor Conference Meet(IL), 2015-03-20(#10) |
| B-1600 | 420 | 4:49.84 | Ozzauto, Joey (2018) (Huntley, IL) | Batavia Distance Madness(IL), 2015-03-13(#22) |
| B-1600 | 420 | 4:49.84 | Smetzer, Ross (2016) (St. Joseph-Ogden, IL) | SIU Boys HS Invitational(IL), 2015-03-07(#9) |
| B-1600 | 422 | 4:49.85 | Schmidt, John (2017) (Grant Community, IL) | Lake Michigan Boys Invitational(WI), 2015-03-21(#22) |
| B-1600 | 423 | 4:49.86 | Jacobs, Dylan (2018) (Carl Sandburg, IL) | Joliet West Boys Invitational(IL), 2015-02-28(#2) |
| B-1600 | 424 | 4:49.87 | Lyons, John (2015) (Plainfield Central, IL) | Bolingbrook Fast Times Boys Invitational(IL), 2015-03-28(#9) |
| B-1600 | 425 | 4:49.89 | Peterson, Simon (2016) (Glenbard West, IL) | WWS Boys Triangular(IL), 2015-03-12(#5) |
| B-1600 | 426 | 4:49.98 | Patejunas, Ralph (2016) (Maine South, IL) | Niles West Invitational(IL), 2015-03-06(#2) |
| B-1600 | 427 | 4:50.00 | Wagner, Nick (2016) (John Hersey, IL) | Proviso West Boys Meet #2(IL), 2015-02-13(#9) |
| B-1600 | 427 | 4:50.00 | Smith, Vance (2015) (Lyons Township, IL) | Lyons Township Boys Quad(IL), 2015-02-19(#3) |
| B-1600 | 427 | 4:50.00 | Griffith, Kyle (2017) (Lake Zurich, IL) | Wheeling Wildcat Relays(IL), 2015-02-28(#2) |
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