| Event | Rank | Mark | By | Meet |
| B-SP | 204 | 44-07.50 | Weston, Matt (2015) (Geneva, IL) | Centennial Charger Classic(IL), 2015-03-07(#9) |
| B-SP | 205 | 44-07.00 | Williams, Author (Kenwood Academy, IL) | Thornwood Boys Open #2(IL), 2015-02-28(#2) |
| B-SP | 206 | 44-06.50 | Gordon, Malik (Hinsdale South, IL) | Proviso West Boys Meet #4(IL), 2015-03-05(#2) |
| B-SP | 207 | 44-06.00 | Robinson, Anfernee (Morgan Park, IL) | Glenbard North Boys Invitational(IL), 2015-03-06(#2) |
| B-SP | 207 | 44-06.00 | Joran, x (Maine West, IL) | Rolling Meadows Boys Quad #1(IL), 2015-02-13(#2) |
| B-SP | 207 | 44-06.00 | Graika, Alex (2015) (Downers Grove North, IL) | WSC-Silver Boys Indoor Conference Meet(IL), 2015-03-21(#4) |
| B-SP | 207 | 44-06.00 | Sheehan, Joe (Wheaton North, IL) | Batavia Boys Triangular(IL), 2015-02-21(#2) |
| B-SP | 207 | 44-06.00 | Heidle, Josiah (2017) (Danville, IL) | Danville Open(IL), 2015-03-14(#3) |
| B-SP | 212 | 44-05.50 | Wolf, Nick (2015) (Plainfield North, IL) | Charleston EIU Boys Invitational - Large Schools(IL), 2015-03-21(#17) |
| B-SP | 212 | 44-05.50 | Smoliak, Edward (2015) (Highland Park, IL) | Deerfield / Highland Park Boys Dual (IL), 2015-03-14(#2) |
| B-SP | 214 | 44-05.25 | Wilson, Anthony (2015) (Bradley-Bourbonnais, IL) | Lincoln-Way Central Co-Ed Invitational(IL), 2015-03-07(#2) |
| B-SP | 215 | 44-05.00 | Jacobson, Kyle (2015) (Beecher, IL) | ISU HS Invitational(IL), 2015-03-07(#7) |
| B-SP | 215 | 44-05.00 | Sliger, Jared (2015) (West Chicago, IL) | West Chicago Boys Triangular(IL), 2015-02-24(#3) |
| B-SP | 217 | 44-04.50 | Barger, Jared (2017) (Harrisburg, IL) | Edwardsville Tiger Indoor Invitational(IL), 2015-03-13(#11) |
| B-SP | 218 | 44-04.00 | Kinder, Tristan (Kaneland , IL) | Batavia Co-Ed Open (IL), 2015-03-12(#1) |
| B-SP | 218 | 44-04.00 | Bushman, Tyler (2015) (Naperville North, IL) | DuPage Valley Boys Indoor Conference Meet(IL), 2015-03-20(#9) |
| B-SP | 218 | 44-04.00 | Culhane, Ryan (Naperville Central, IL) | DuPage Valley Boys Indoor Conference Meet(IL), 2015-03-20(#10) |
| B-SP | 218 | 44-04.00 | Black, Austin (2016) (Routt Catholic, IL) | Jacksonville Small School Invitational(IL), 2015-03-07(#4) |
| B-SP | 222 | 44-03.00 | Burgess, Chris (2015) (Oak Park-River Forest, IL) | Proviso West Boys Meet #1(IL), 2015-02-06(#1) |
| B-SP | 223 | 44-02.50 | Birch, Dillon (2017) (Shelbyville, IL) | Jersey Winter Thaw Invitational(IL), 2015-03-14(#4) |
| B-SP | 224 | 44-01.50 | Woolery, Chase (2015) (Carl Sandburg, IL) | Southwest Suburban Boys Indoor Conference Meet(IL), 2015-03-21(#6) |
| B-SP | 225 | 44-01.00 | Nail, Alex (Glenwood, IL) | Jacksonville Large School Invitational(IL), 2015-03-06(#5) |
| B-SP | 225 | 44-01.00 | Franklin, Greg (2016) (Whitney Young, IL) | CPS Indoor Meet - Group A(IL), 2015-03-22(#2) |
| B-SP | 225 | 44-01.00 | Murphy, Daniel (2016) (Mercer County, IL) | Monmouth Titan Invitational(IL), 2015-03-17(#4) |
| B-SP | 225 | 44-01.00 | Tam-Jam, Sam (Wheaton North, IL) | DuPage Valley Boys Indoor Conference Meet(IL), 2015-03-20(#11) |
| B-SP | 229 | 44-00.75 | Richart, Jason (2015) (Robinson, IL) | Charleston EIU Boys Invitational - Small Schools(IL), 2015-03-21(#10) |
| B-SP | 230 | 44-00.50 | Preston, Quinlin (2015) (O'Fallon, IL) | Edwardsville Tiger Indoor Invitational(IL), 2015-03-13(#12) |
| B-SP | 231 | 44-00.25 | Miley, Calvin (Centralia, IL) | Charleston EIU Boys Invitational - Large Schools(IL), 2015-03-21(#18) |
| B-SP | 232 | 44-00.00 | Demma, Nick (St. Rita, IL) | Morton Boys Meet #1(IL), 2015-02-13(#6) |
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