| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-400 | 88 | 50.55 | O'Donnell, Brendan (2016) (Huntley, IL) | Fox Valley Boys Conference meet(IL), 2015-05-15(#2) |
| B-400 | 88 | 50.55 | Allen, Darius (2016) (Tinley Park, IL) | IL 2A Boys State Prelims(IL), 2015-05-29(#8) |
| B-400 | 90 | 50.56 | Ma, Kevin (2015) (Whitney Young, IL) | CPS Boys Varsity Trials(IL), 2015-05-06(#6) |
| B-400 | 90 | 50.56 | Rogers, Dylan (2016) (Harry D Jacobs, IL) | Gus Scott Co-Ed Invitational(IL), 2015-04-17(#1) |
| B-400 | 92 | 50.58 | Stine, Connor (2015) (Olympia, IL) | Mahomet-Seymour Boys Invitational(IL), 2015-05-16(#1) |
| B-400 | 92 | 50.58 | Taylor, Mike (2018) (Downers Grove North, IL) | IL 3A Downers Grove South Boys Sectional(IL), 2015-05-22(#3) |
| B-400 | 94 | 50.59 | Miller, Dillon (2015) (Jacksonville, IL) | IL 2A Lanphier Boys Sectional(IL), 2015-05-22(#2) |
| B-400 | 95 | 50.61 | Neubauer, Kyle (2015) (Burlington Central, IL) | Big Northern East Boys Conference Meet(IL), 2015-05-14(#1) |
| B-400 | 95 | 50.61 | Smith, Will (2017) (Crete-Monee, IL) | AAU Central District Qualifier(IL), 2015-06-14(#4) |
| B-400 | 97 | 50.62 | Bello, Anthony (2016) (Homewood-Flossmoor, IL) | AAU Central District Qualifier(IL), 2015-06-14(#5) |
| B-400 | 97 | 50.62 | Simmons, Kaleb (2016) (Althoff, IL) | IL 1A Chester Boys Sectional(IL), 2015-05-21(#1) |
| B-400 | 99 | 50.65 | Lewis, Kyle (2015) (Fremd, IL) | MSL-West Boys Divisional Championship(IL), 2015-04-28(#1) |
| B-400 | 100 | 50.66 | Speer, Daniel (2015) (Cary-Grove Community, IL) | Fox Valley Boys Conference meet(IL), 2015-05-15(#3) |
| B-400 | 101 | 50.76 | Tomaszewski, Kai (2016) (Princeton, IL) | IL 2A LaSalle-Peru Boys Sectional(IL), 2015-05-22(#1) |
| B-400 | 102 | 50.77 | Rhodes, Sanchez (2018) (Belleville East, IL) | Marion Freeman Invitational(MO), 2015-05-02(#6) |
| B-400 | 102 | 50.77 | Murphy, Josan (2016) (Willowbrook, IL) | WSC-Gold Boys Conference Meet(IL), 2015-05-15(#3) |
| B-400 | 104 | 50.82 | Glass, Christian (2015) (Plainfield East, IL) | Southwest Prairie Boys Conference Meet(IL), 2015-05-14(#3) |
| B-400 | 105 | 50.83 | Zaley, Ben (2016) (Schaumburg, IL) | MSL-West Boys Divisional Championship(IL), 2015-04-28(#3) |
| B-400 | 106 | 50.84 | Brown, Isaiah (2016) (Marmion Academy, IL) | IL 3A West Aurora Boys Sectional(IL), 2015-05-21(#3) |
| B-400 | 106 | 50.84 | Coffey, Matt (2015) (Dixon, IL) | IL 2A Sterling Boys Sectional(IL), 2015-05-22(#3) |
| B-400 | 108 | 50.85 | McCue, Connor (2016) (West Aurora, IL) | West Aurora Boys Triangular(IL), 2015-04-28(#1) |
| B-400 | 109 | 50.86 | Elmore, Tyler (2017) (Bolingbrook, IL) | Southwest Suburban Blue Boys Conference Meet(IL), 2015-05-14(#4) |
| B-400 | 110 | 50.88 | Rieke, Jaxon (2015) (Eureka, IL) | IL 1A Boys State Prelims(IL), 2015-05-28(#10) |
| B-400 | 111 | 50.89 | Wassell, Kahlil (2017) (New Berlin, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#10) |
| B-400 | 111 | 50.89 | Davis, Antonio (2017) (Bloom Township, IL) | Winston Brown Invitational(IL), 2015-04-25(#3) |
| B-400 | 113 | 50.90 | McKenzie, Marvin (2015) (Riverside-Brookfield, IL) | Metro Suburban West Boys Conference Meet(IL), 2015-05-15(#1) |
| B-400 | 114 | 50.91 | Theel, Tyler (2016) (Wauconda Comm, IL) | IL 2A Richmond-Burton Boys Sectional(IL), 2015-05-22(#3) |
| B-400 | 115 | 50.92 | Pierce, Jackson (2016) (Nashville Comm, IL) | Breese Tri-County Initational(IL), 2015-04-27(#1) |
| B-400 | 116 | 50.95 | Weaver, Zach (2018) (Reed-Custer, IL) | IL 1A Boys State Prelims(IL), 2015-05-28(#11) |
| B-400 | 117 | 50.96 | Davila, Luis (2015) (Jefferson, IL) | NIC-10 Boys Conference Meet(IL), 2015-05-15(#2) |
| B-400 | 117 | 50.96 | Roberson, Tyler (Homewood-Flossmoor, IL) | USATF JO Region 7 Qualifier(IL), 2015-07-12(#5) |
| B-400 | 119 | 50.99 | Bazai, Suleman (2015) (Edwardsville, IL) | Madison County Championships(IL), 2015-04-28(#1) |
| B-400 | 119 | 50.99 | Vance, Vanharvey (2018) (Rich Central, IL) | IL 2A Boys State Prelims(IL), 2015-05-29(#11) |
| B-400 | 119 | 50.99 | Jones, Duwayne-Patriq (2017) (Hononegah, IL) | AAU JO Region 13 Qualifier(IL), 2015-07-05(#4) |
| B-400 | 122 | 51.00 | Graham, Rayshawn (2016) (Eisenhower , IL) | South Suburban Red Boys Conference Meet(IL), 2015-05-14(#1) |
| B-400 | 123 | 51.01 | Foster, Daylen (Unattached, IL) | AAU JO Region 13 Qualifier(IL), 2015-07-05(#5) |
| B-400 | 124 | 51.02 | Randa, Kody (2015) (Sandwich Community, IL) | IL 2A LaSalle-Peru Boys Sectional(IL), 2015-05-22(#2) |
| B-400 | 125 | 51.03 | Kluck, Cody (2015) (Pearl City, IL) | IL 1A Byron Boys Sectional(IL), 2015-05-22(#2) |
| B-400 | 126 | 51.04 | Malinowski, Mike (2016) (Minooka Community, IL) | Southwest Prairie Boys Conference Meet(IL), 2015-05-14(#5) |
| B-400 | 127 | 51.06 | Agee, Jacobi (2016) (Bloom Township, IL) | USATF Youth National Championships 17-18(IL), 2015-07-05(#18) |
| B-400 | 128 | 51.07 | Edgerton, Trevor (2015) (Lyons Township, IL) | Minooka Boys Invitational(IL), 2015-04-18(#4) |
| B-400 | 129 | 51.09 | Mafany, Nelson (2016) (Niles North, IL) | CSL-North Boys Conference Meet(IL), 2015-05-15(#2) |
| B-400 | 130 | 51.10 | Arroyo, Aaron (2018) (Minooka Community, IL) | Belleville West Boys Invitational(IL), 2015-04-11(#7) |
| B-400 | 131 | 51.15 | Slovak, Eric (2015) (Vernon Hills, IL) | IL 2A Richmond-Burton Boys Sectional(IL), 2015-05-22(#4) |
| B-400 | 132 | 51.16 | Quinn, Pat (2015) (Libertyville, IL) | Al Janulis Relays(IL), 2015-04-18(#2) |
| B-400 | 132 | 51.16 | Williams, Charles (2015) (Johnson College Prep, IL) | CPS Boys Varsity Trials(IL), 2015-05-06(#3) |
| B-400 | 132 | 51.16 | Gilchrese, Ronald (2016) (Alton, IL) | Southwest Boys Conference Meet(IL), 2015-05-13(#4) |
| B-400 | 135 | 51.18 | Magee, Arnold (2015) (Waukegan , IL) | CSL-South Boys Conference Meet(IL), 2015-05-15(#2) |
| B-400 | 136 | 51.19 | Hilling, Dan (2015) (Triad, IL) | Mississippi Valley Boys Conference Meet(IL), 2015-05-13(#2) |
| B-400 | 137 | 51.20 | Labbey, Laken (2015) (Pittsfield, IL) | IL 1A Boys State Prelims(IL), 2015-05-28(#12) |
| B-400 | 138 | 51.21 | Lillard, Dan (2016) (Hinsdale Central, IL) | IL 3A Downers Grove South Boys Sectional(IL), 2015-05-22(#5) |
| B-400 | 138 | 51.21 | Jackson, Jalin (2015) (UIC College Prep, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#11) |
| B-400 | 140 | 51.23 | Swallow, Jacob (Lincoln-Way Central, IL) | IL 3A Homewood-Flossmoor Boys Sectional(IL), 2015-05-21(#6) |
| B-400 | 141 | 51.24 | Jefferson, Martaviyon (2016) (Rockford East, IL) | NIC-10 Boys Conference Meet(IL), 2015-05-15(#3) |
| B-400 | 141 | 51.24 | Watkins, Tanner (2015) (Sycamore, IL) | NIB-12 Boys Conference Meet(IL), 2015-05-15(#3) |
| B-400 | 143 | 51.27 | Mead, Lenny (2016) (Princeton, IL) | Metamora Boys ABC Invitational(IL), 2015-04-24(#4) |
| B-400 | 144 | 51.28 | Elms, Nick (2016) (Conant, IL) | Mid-Suburban League Boys Championships(IL), 2015-05-15(#3) |
| B-400 | 144 | 51.28 | Brown, Quintin (2015) (Westmont, IL) | IL 1A Boys State Prelims(IL), 2015-05-28(#13) |
| B-400 | 144 | 51.28 | Silva, Gabriel (2015) (Lebanon, IL) | IL 1A Chester Boys Sectional(IL), 2015-05-21(#2) |
| B-400 | 147 | 51.30 | Peifer, Brett (2015) (Shelbyville, IL) | Tri-County Invitational(IL), 2015-04-21(#1) |
| B-400 | 147 | 51.30 | Warren, Heath (2016) (Springfield, IL) | Springfield Boys Triangular(IL), 2015-04-02(#1) |
| B-400 | 149 | 51.31 | Rice, Zachary (2016) (Tremont, IL) | Elmwood Trojan Co-Ed Invitational(IL), 2015-04-27(#1) |
| B-400 | 149 | 51.31 | Bruce, Terrance (2016) (Sterling, IL) | IL 2A Sterling Boys Sectional(IL), 2015-05-22(#4) |
| B-400 | 151 | 51.32 | Beech, Conrad (2016) (Harry D Jacobs, IL) | Fox Valley Boys Conference meet(IL), 2015-05-15(#4) |
| B-400 | 151 | 51.32 | Cason, Ni'Zarien (Belleville West, IL) | Southwest Boys Conference Meet(IL), 2015-05-13(#5) |
| B-400 | 153 | 51.33 | Spates, Aquil (2017) (Glenbard North, IL) | DuPage Valley Boys Conference Meet(IL), 2015-05-15(#1) |
| B-400 | 154 | 51.35 | Christiansen, Jared (2015) (Hononegah, IL) | Northern Illinois Invitational(IL), 2015-05-08(#1) |
| B-400 | 154 | 51.35 | Griffin, Nate (2016) (Providence Catholic, IL) | Chicago Catholic League Championships(IL), 2015-05-16(#4) |
| B-400 | 154 | 51.35 | Lathrop, Gus (2015) (East Richland, IL) | Robinson Boys Invitational(IL), 2015-04-24(#1) |
| B-400 | 157 | 51.36 | Eastwood, Michael (2017) (Bureau Valley, IL) | IL 1A Boys State Prelims(IL), 2015-05-28(#14) |
| B-400 | 158 | 51.37 | Hollis, Russel (2018) (East St. Louis-Senior, IL) | Southwest Boys Conference Meet(IL), 2015-05-13(#2) |
| B-400 | 159 | 51.38 | Blair, Tristan (2017) (Sacred Heart-Griffin, IL) | USATF IL Assc JO Championships(IL), 2015-06-28(#12) |
| B-400 | 160 | 51.39 | Vance, Harvey (2018) (Rich Central, IL) | IL 2A Hillcrest Boys Sectional(IL), 2015-05-22(#2) |
| B-400 | 161 | 51.40 | Burke, Charles (2017) (Waubonsie Valley, IL) | Upstate Eight Boys Conference Meet(IL), 2015-05-14(#5) |
| B-400 | 161 | 51.40 | Terrini, Adam (2016) (Wheaton North, IL) | DuPage Valley Boys Conference Meet(IL), 2015-05-15(#2) |
| B-400 | 163 | 51.41 | Yonker, Josh (2015) (Harry D Jacobs, IL) | Gus Scott Co-Ed Invitational(IL), 2015-04-17(#1) |
| B-400 | 163 | 51.41 | Culter, Alex (2017) (Mt. Zion, IL) | IL 2A Mattoon Boys Sectional(IL), 2015-05-21(#2) |
| B-400 | 165 | 51.43 | Marshall, Michael (2015) (Plano, IL) | Seneca Irish Invitational(IL), 2015-04-17(#1) |
| B-400 | 165 | 51.43 | Swallow, Jake (2015) (Lincoln-Way Central, IL) | Southwest Suburban Red Boys Conference Meet(IL), 2015-05-14(#5) |
| B-400 | 167 | 51.44 | Bamgbose, Babajide (2016) (Evanston Township, IL) | IL 3A Loyola Academy Boys Sectional(IL), 2015-05-21(#4) |
| B-400 | 168 | 51.45 | Larimore, Eli (2015) (Tremont, IL) | Elmwood Trojan Co-Ed Invitational(IL), 2015-04-27(#2) |
| B-400 | 168 | 51.45 | Krause, Ryan (2015) (Triad, IL) | Granite City Invitational(IL), 2015-04-17(#6) |
| B-400 | 168 | 51.45 | Perakis, Jake (2017) (Bolingbrook, IL) | IL 3A Downers Grove South Boys Sectional(IL), 2015-05-22(#6) |
| B-400 | 171 | 51.46 | Victoria, Michael (2015) (Harrisburg, IL) | Mascoutah Boys Military Classic(IL), 2015-04-24(#1) |
| B-400 | 171 | 51.46 | Hays, Noah (2017) (Waterloo, IL) | IL 2A Triad Boys Sectional(IL), 2015-05-21(#4) |
| B-400 | 173 | 51.47 | Frejowski, Tom (2015) (Northside Prep, IL) | CPS Boys Varsity Trials(IL), 2015-05-06(#7) |
| B-400 | 173 | 51.47 | Garcia, Carlos (Argo Community, IL) | South Suburban Red Boys Conference Meet(IL), 2015-05-14(#2) |
| B-400 | 175 | 51.48 | Mcneal, Deondre (2016) (Prosser Career Academy, IL) | Chicago Public League City Championships(IL), 2015-05-09(#4) |
| B-400 | 175 | 51.48 | Gage, Brandon (2017) (Oak Park-River Forest, IL) | USATF Youth National Championships 17-18(IL), 2015-07-05(#20) |
| B-400 | 177 | 51.49 | Balliu, Jake (2015) (Lakes, IL) | Bartlett Flyin Hawk Invitational(IL), 2015-04-18(#3) |
| B-400 | 177 | 51.49 | Shattuck, Forest (2016) (Belvidere North, IL) | IL 3A Guilford Boys Sectional(IL), 2015-05-21(#4) |
| B-400 | 179 | 51.50 | Parthemore, Ryan (2015) (Carl Sandburg, IL) | Pete Struck Eagle Classic(IL), 2015-05-01(#6) |
| B-400 | 179 | 51.50 | Sampson, Jacob (2016) (Neuqua Valley, IL) | AAU JO Region 13 Qualifier(IL), 2015-07-05(#7) |
| B-400 | 181 | 51.51 | Mollman, Tim (2015) (New Trier Township, IL) | Gus Scott Co-Ed Invitational(IL), 2015-04-17(#2) |
| B-400 | 181 | 51.51 | Buresh, Ben (2018) (Wethersfield, IL) | IL 1A Farmington Boys Sectional(IL), 2015-05-22(#2) |
| B-400 | 183 | 51.53 | Reilly, James (2015) (Hinsdale Central, IL) | LWW Warrior Invitational(IL), 2015-05-01(#5) |
| B-400 | 183 | 51.53 | Buck, Zeke (2016) (Geneva, IL) | Kane County Boys Championships(IL), 2015-05-09(#5) |
| B-400 | 185 | 51.54 | Tomlin, Brad (2015) (ROWVA, IL) | IL 1A Farmington Boys Sectional(IL), 2015-05-22(#3) |
| B-400 | 186 | 51.55 | Ruscitti, Alex (2015) (Plainfield North, IL) | Belleville West Boys Invitational(IL), 2015-04-11(#10) |
| B-400 | 187 | 51.56 | Meier, Matthew (2016) (Naperville Central, IL) | DuPage Valley Boys Conference Meet(IL), 2015-05-15(#3) |
| B-400 | 188 | 51.57 | Wilson, Doug (2016) (Rock Island, IL) | Dick Beebe Track Classic(IL), 2015-04-18(#5) |
| B-400 | 188 | 51.57 | Agyake, TJ (2016) (Naperville North, IL) | DuPage Valley Boys Conference Meet(IL), 2015-05-15(#4) |
| B-400 | 188 | 51.57 | Lever, Jack (2015) (Edwardsville, IL) | Southwest Boys Conference Meet(IL), 2015-05-13(#6) |
| B-400 | 191 | 51.59 | Bailey, B.J. (2015) (Reed-Custer, IL) | Herscher Invitational(IL), 2015-05-01(#1) |
| B-400 | 192 | 51.62 | Watson, Collin (2015) (Evanston Township, IL) | Jim Arnold Classic(IL), 2015-05-02(#5) |
| B-400 | 192 | 51.62 | McMahon, Ryan (2016) (Fremd, IL) | Mid-Suburban League Boys Championships(IL), 2015-05-15(#4) |
| B-400 | 192 | 51.62 | Best, Andrew (2016) (Lyons Township, IL) | WSC-Silver Boys Conference Meet(IL), 2015-05-16(#3) |
| B-400 | 192 | 51.62 | Arroyo, Gabe (2016) (Yorkville, IL) | IL 3A Plainfield North Boys Sectional(IL), 2015-05-21(#4) |
| B-400 | 196 | 51.66 | Jones, Adetunji (2016) (Bloomington, IL) | Mike Yavorski Hornet Invitational(IL), 2015-05-01(#4) |
| B-400 | 196 | 51.66 | Rodgers, Derrius (2016) (Lockport Township , IL) | Southwest Suburban Blue Boys Conference Meet(IL), 2015-05-14(#5) |
| B-400 | 196 | 51.66 | Warnes, Andrew (2016) (Tolono Unity, IL) | Shelbyville Boys Open(IL), 2015-05-16(#3) |
| B-400 | 196 | 51.66 | Pearson, Tyler (2017) (Pekin Community, IL) | IL 3A Normal West Boys Sectional(IL), 2015-05-22(#7) |
| B-400 | 200 | 51.67 | Strode, Tyler (2015) (Lanphier, IL) | Lanphier Boys Open(IL), 2015-04-11(#2) |
| B-400 | 200 | 51.67 | Hamilton, Tommy (2015) (Lincoln-Way East, IL) | Carlin Nalley Invitational(IL), 2015-05-09(#6) |
| B-400 | 202 | 51.68 | Iganccio, Isaiah (2016) (Mascoutah, IL) | Mississippi Valley Boys Conference Meet(IL), 2015-05-13(#3) |
| B-400 | 202 | 51.68 | Porter, Nick (2016) (Paxton-Buckley-Loda, IL) | News-Gazette Honor Roll Meet(IL), 2015-05-18(#1) |
| B-400 | 202 | 51.68 | Nathan, Tayjione (2016) (Hillcrest, IL) | Paul Wallace Classic (IL), 2015-01-01(#7) |
| B-400 | 205 | 51.69 | Rustay, Declan (2018) (Hoffman Estates, IL) | MSL-West Boys Divisional Championship(IL), 2015-04-28(#4) |
| B-400 | 205 | 51.69 | Eufrasio, Nick (Willowbrook, IL) | WSC-Gold Boys Conference Meet(IL), 2015-05-15(#4) |
| B-400 | 207 | 51.70 | Cinq-Mars, Zack (2016) (Grayslake Central, IL) | Lake County Boys Championships(IL), 2015-05-09(#6) |
| B-400 | 208 | 51.71 | Howard, Dillon (2017) (Cumberland, IL) | Arthur Invitational(IL), 2015-04-10(#1) |
| B-400 | 208 | 51.71 | Stegall, Keenan (2016) (Alton, IL) | IL 3A Normal West Boys Sectional(IL), 2015-05-22(#8) |
| B-400 | 210 | 51.72 | Lidinsky, Marc (Sandwich Community, IL) | IL 2A LaSalle-Peru Boys Sectional(IL), 2015-05-22(#3) |
| B-400 | 211 | 51.73 | Hagene, Kyle (2016) (Sparta, IL) | Buzz Bradley Relays(IL), 2015-04-24(#1) |
| B-400 | 211 | 51.73 | Roundtree, Colby (2015) (Chicago Christian, IL) | Carlin Nalley Invitational(IL), 2015-05-09(#2) |
| B-400 | 211 | 51.73 | Maisoneneve, Guy (Manteno, IL) | IL 2A Hillcrest Boys Sectional(IL), 2015-05-22(#3) |
| B-400 | 211 | 51.73 | Hernandez, Cesar (North Boone, IL) | IL 2A Richmond-Burton Boys Sectional(IL), 2015-05-22(#5) |
| B-400 | 215 | 51.74 | Koehler, Connor (2015) (Lemont, IL) | Carlin Nalley Invitational(IL), 2015-05-09(#7) |
| B-400 | 216 | 51.76 | Denley, Jackson (2015) (Niles West, IL) | CSL-South Boys Conference Meet(IL), 2015-05-15(#5) |
| B-400 | 216 | 51.76 | Cernek, Gavin (2016) (Glenbrook South, IL) | CSL-South Boys Conference Meet(IL), 2015-05-15(#5) |
| B-400 | 218 | 51.77 | Suarez, Greg (2015) (Prospect, IL) | MSL-East Boys Divisional Championship(IL), 2015-04-28(#1) |
| B-400 | 219 | 51.78 | Ames, Grant (2015) (Erie-Prophetstown, IL) | Three Rivers Boys Conference Meet(IL), 2015-05-18(#1) |
| B-400 | 219 | 51.78 | Torpy, Chris (2016) (Carl Sandburg, IL) | IL 3A Downers Grove South Boys Sectional(IL), 2015-05-22(#7) |
| B-400 | 221 | 51.80 | Crim, Corbin (2016) (Harrisburg, IL) | Southern Illinois River to River Boys Conference Meet(IL), 2015-05-14(#1) |
| B-400 | 221 | 51.80 | Szkaradek, Peter (2016) (Lake Park, IL) | DuPage Valley Boys Conference Meet(IL), 2015-05-15(#5) |
| B-400 | 221 | 51.80 | Bloss, Michael (2015) (Wheaton North, IL) | IL 3A York Boys Sectional(IL), 2015-05-22(#5) |
| B-400 | 224 | 51.81 | Harris, Jevais (2016) (Hinsdale South, IL) | Bud Mohns Invitational(IL), 2015-04-18(#5) |
| B-400 | 225 | 51.82 | Moran, Luke (2016) (Oswego, IL) | Roger Wilcox Invitational(IL), 2015-05-01(#1) |
| B-400 | 226 | 51.83 | Skowronski, Ryan (2018) (Shelbyville, IL) | Shelbyville Boys Open(IL), 2015-04-07(#1) |
| B-400 | 227 | 51.84 | McCauley, Denzel (2015) (Carbondale Comm, IL) | Herrin Boys Invitational(IL), 2015-04-15(#2) |
| B-400 | 227 | 51.84 | Dailey, Connor (2016) (Lincoln-Way West, IL) | LWW Warrior Invitational(IL), 2015-05-01(#11) |
| B-400 | 229 | 51.85 | Bayer, Konrad (2016) (Benet Academy, IL) | IL 3A York Boys Sectional(IL), 2015-05-22(#6) |
| B-400 | 229 | 51.85 | Deal, Austin (2016) (Plainfield South, IL) | USATF JO Region 7 Qualifier(IL), 2015-07-12(#1) |
| B-400 | 231 | 51.86 | Holden, David (2016) (Greenville, IL) | Jockish-Grandone Invitational(IL), 2015-05-02(#1) |
| B-400 | 231 | 51.86 | Sherwood, Kevin (2017) (Prospect, IL) | Mid-Suburban League Boys Championships(IL), 2015-05-15(#5) |
| B-400 | 233 | 51.88 | Smith, Eddie (Springfield, IL) | Central State Eight Boys Conference Meet(IL), 2015-05-15(#2) |
| B-400 | 234 | 51.89 | Hofer, Lucas (2017) (Geneseo, IL) | IL 2A LaSalle-Peru Boys Sectional(IL), 2015-05-22(#4) |
| B-400 | 235 | 51.90 | Grant, Ames (Erie-Prophetstown, IL) | Gebhardt-Worley Invitational(IL), 2015-04-11(#2) |
| B-400 | 235 | 51.90 | Kirby, Josh (2015) (Peoria Christian, IL) | Dunlap Boys Open(IL), 2015-04-11(#2) |
| B-400 | 237 | 51.91 | Livingston, Blaine (Dwight, IL) | Seneca Irish Invitational(IL), 2015-04-17(#4) |
| B-400 | 237 | 51.91 | Allen, Ryan (2015) (St. Joseph-Ogden, IL) | St. Joseph-Ogden Spartan Classic(IL), 2015-05-01(#1) |
| B-400 | 239 | 51.92 | Bender, Kyle (2015) (Neuqua Valley, IL) | IL 3A Plainfield North Boys Sectional(IL), 2015-05-21(#5) |
| B-400 | 240 | 51.93 | Amen, Luke (2017) (Glenbrook North, IL) | CSL-North Boys Conference Meet(IL), 2015-05-15(#3) |
| B-400 | 241 | 51.94 | Mosley, Thomas (2017) (Zion-Benton Twnshp, IL) | Jane Dickens Invitational(IL), 2015-06-20(#1) |
| B-400 | 242 | 51.95 | Heath, Bryan (2015) (Taylor Ridge, IL) | IL 1A Farmington Boys Sectional(IL), 2015-05-22(#4) |
| B-400 | 243 | 51.96 | Gibson, Chris (2015) (Lane Technical, IL) | Dan Horyn Invitational(IL), 2015-04-24(#1) |
| B-400 | 243 | 51.96 | Labby, Laken (2015) (Pittsfield, IL) | Capital Area Classic(IL), 2015-05-18(#2) |
| B-400 | 245 | 52.00 | Johnson, Dontae (2015) (O'Fallon, IL) | Southwest Boys Conference Meet(IL), 2015-05-13(#7) |
| B-400 | 246 | 52.01 | Kiska, Mitchell (2017) (Plainfield East, IL) | IL 3A Plainfield North Boys Sectional(IL), 2015-05-21(#6) |
| B-400 | 247 | 52.02 | Bauman, Spencer (2016) (Waubonsie Valley, IL) | Gus Scott Co-Ed Invitational(IL), 2015-04-17(#3) |
| B-400 | 247 | 52.02 | Loza, Luis (2015) (Romeoville, IL) | Terry Englund Relays(IL), 2015-04-23(#3) |
| B-400 | 247 | 52.02 | Flores, Randy (2016) (Jefferson, IL) | Gib Seegers Invitational(IL), 2015-05-01(#4) |
| B-400 | 250 | 52.03 | Schoonover, Will (2016) (Havana, IL) | IL 1A Tremont Boys Sectional(IL), 2015-05-21(#3) |
| B-400 | 251 | 52.04 | Sewell, Nathan (2016) (Casey-Westfield, IL) | IL 1A Lawrenceville Boys Sectional(IL), 2015-05-21(#2) |
| B-400 | 251 | 52.04 | Bolfing, Austin (2015) (Taylorville, IL) | Capital Area Classic(IL), 2015-05-18(#3) |
| B-400 | 253 | 52.05 | Heinz, Kristoffer (2017) (Naperville North, IL) | Rolling Meadows Mustang Classic(IL), 2015-05-01(#1) |
| B-400 | 253 | 52.05 | Ambrose, Nathan (2015) (Winnebago, IL) | Mike Mowen Invitational(IL), 2015-05-08(#1) |
| B-400 | 253 | 52.05 | Henry, Michael (2017) (Evanston Township, IL) | CSL-South Boys Conference Meet(IL), 2015-05-15(#1) |
| B-400 | 253 | 52.05 | Lyons, Avery (Bloomington, IL) | Bloomington/Normal Intercity Classic(IL), 2015-04-28(#3) |
| B-400 | 257 | 52.06 | Gray, Adam (2016) (Downers Grove South, IL) | WSC-Gold Boys Conference Meet(IL), 2015-05-15(#5) |
| B-400 | 257 | 52.06 | Bastian, Cooper (2018) (Wheaton Academy, IL) | IL 2A Boys State Prelims(IL), 2015-05-29(#20) |
| B-400 | 259 | 52.07 | Gay, Jalil (2018) (Rock Island, IL) | Western Big Six Boys Conference Meet(IL), 2015-05-15(#2) |
| B-400 | 259 | 52.07 | Phillips, Bradley (2016) (Joliet Central, IL) | Illinois Sprint Spectacular(IL), 2015-06-06(#2) |
| B-400 | 259 | 52.07 | Arroyo, Luis (2015) (Yorkville, IL) | AAU Central District Qualifier(IL), 2015-06-14(#4) |
| B-400 | 259 | 52.07 | Bopp, Parker (Robinson, IL) | Robinson Boys Invitational(IL), 2015-04-24(#2) |
| B-400 | 263 | 52.08 | Jackson, Daryl (2015) (Lanphier, IL) | Solon Lion Boys Open(IL), 2015-04-14(#1) |
| B-400 | 263 | 52.08 | Finnegan, Hunter (Wheaton Academy, IL) | Chicago Christian Invitational(IL), 2015-05-01(#2) |
| B-400 | 263 | 52.08 | Cagigal, Jordan (2016) (Metea Valley, IL) | Red Grange Invitational(IL), 2015-04-24(#4) |
| B-400 | 263 | 52.08 | Young, James (2018) (East St. Louis-Senior, IL) | Fred Lyons Invitational(MO), 2015-04-24(#2) |
| B-400 | 263 | 52.08 | Nicoletti, Jack (2016) (Barrington, IL) | MSL-West Boys Divisional Championship(IL), 2015-04-28(#5) |
| B-400 | 268 | 52.09 | Swanson, Brian (2015) (Oak Forest, IL) | IL 2A Hillcrest Boys Sectional(IL), 2015-05-22(#4) |
| B-400 | 269 | 52.10 | Skinner, Preston (2015) (Shiloh, IL) | IL 1A Boys State Prelims(IL), 2015-05-28(#18) |
| B-400 | 269 | 52.10 | Stainback, Tyshawn (2015) (East St. Louis-Senior, IL) | Southwest Boys Conference Meet(IL), 2015-05-13(#8) |
| B-400 | 271 | 52.11 | Mcsteen, Harry (2016) (Joliet Catholic Academy, IL) | IL 2A LaSalle-Peru Boys Sectional(IL), 2015-05-22(#5) |
| B-400 | 271 | 52.11 | Hillegass, Alex (2016) (Normal Community West, IL) | Belleville West Boys Invitational(IL), 2015-04-11(#12) |
| B-400 | 271 | 52.11 | Galaviz, Fedrico (2015) (Arcola, IL) | Monticello Boys Invitational(IL), 2015-04-17(#1) |
| B-400 | 274 | 52.12 | Hemmen, Tyler (2015) (Argenta-Oreana, IL) | Monticello Boys Invitational(IL), 2015-04-17(#2) |
| B-400 | 274 | 52.12 | Ehringer, Brad (Plainfield South, IL) | Minooka Boys Invitational(IL), 2015-04-18(#6) |
| B-400 | 276 | 52.13 | Favela, Eduardo (Providence Catholic, IL) | CCL F/S Championships(IL), 2015-05-07(#1) |
| B-400 | 277 | 52.15 | Guzman, Cesar (2016) (Plainfield South, IL) | Wheaton North Best 4 Invitational(IL), 2015-04-11(#2) |
| B-400 | 277 | 52.15 | Hari, Connor (Normal University, IL) | Bloomington/Normal Intercity Classic(IL), 2015-04-28(#4) |
| B-400 | 277 | 52.15 | Bienduga, Alex (2016) (Wheaton North, IL) | DuPage Valley Boys Conference Meet(IL), 2015-05-15(#6) |
| B-400 | 280 | 52.16 | Vanderlinden, Cameron (Marengo, IL) | IL 2A Richmond-Burton Boys Sectional(IL), 2015-05-22(#6) |
| B-400 | 281 | 52.18 | Gayton, Markese (2017) (Iroquois West, IL) | Herscher Invitational(IL), 2015-05-01(#2) |
| B-400 | 281 | 52.18 | Hasty, Jonathan (2017) (El Paso-Gridley, IL) | IL 1A Bureau Valley Boys Sectional(IL), 2015-05-22(#2) |
| B-400 | 281 | 52.18 | Pruett, Austin (Plainfield South, IL) | Southwest Prairie Boys Conference Meet(IL), 2015-05-14(#1) |
| B-400 | 284 | 52.20 | Anglin, Demonte (2016) (Dusable, IL) | IL 2A Robeson Boys Sectional(IL), 2015-05-21(#2) |
| B-400 | 284 | 52.20 | Spikener, Haneef (2017) (Waubonsie Valley, IL) | AAU Central District Qualifier(IL), 2015-06-14(#5) |
| B-400 | 286 | 52.21 | Hill, Delvin (2018) (Belleville East, IL) | Collinsville Boys Invitational(IL), 2015-05-09(#9) |
| B-400 | 287 | 52.22 | Turpin, Victor (2015) (Minooka Community, IL) | Minooka Boys Quad(IL), 2015-04-30(#1) |
| B-400 | 287 | 52.22 | Divinere, Vince (2017) (Glenbard West, IL) | Jim Arnold Classic(IL), 2015-05-02(#1) |
| B-400 | 287 | 52.22 | Gray, Chance (2015) (Quincy, IL) | IL 3A Normal West Boys Sectional(IL), 2015-05-22(#10) |
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| | | See more performances for B-400 | | |
