| Event | Rank | Mark | By | Meet |
| | | National Elites above. State Elites below | | |
| B-400 | 1 | 48.56 | Lewis, Kenny (2014) (Plainfield East, IL) | IL 3A Boys State Prelims(IL), 2013-05-24(#1) |
| B-400 | 2 | 48.63 | Bransby, Sam (2014) (Naperville Central, IL) | IL 3A Boys State Prelims(IL), 2013-05-24(#4) |
| B-400 | 3 | 48.72 | Henderson, Cole (2014) (Pekin Community, IL) | IL 3A Rock Island Boys Sectional(IL), 2013-05-17(#1) |
| B-400 | 4 | 48.73 | Burns, Matt (2014) (Willowbrook, IL) | IL 3A Boys State Prelims(IL), 2013-05-24(#2) |
| B-400 | 5 | 48.82 | Allen, Kenneth (2013) (Thornwood, IL) | Red Ribbon Invitational(IL), 2013-04-27(#1) |
| B-400 | 6 | 49.05 | Harrison, Malik (2013) (Springfield, IL) | IL 3A Rock Island Boys Sectional(IL), 2013-05-17(#2) |
| B-400 | 7 | 49.06 | Ifianayi, Paul (2015) (Elk Grove, IL) | IL 3A Glenbard North Boys Sectional(IL), 2013-05-17(#1) |
| B-400 | 8 | 49.08 | Dickholtz, Austin (2013) (Glenbrook South, IL) | IL 3A Boys State Prelims(IL), 2013-05-24(#6) |
| B-400 | 9 | 49.14 | Shulga, Alex (2014) (Grayslake North, IL) | Palatine Relays(IL), 2013-04-27(#1) |
| B-400 | 10 | 49.17 | Wilson, Chris (2014) (Minooka Community, IL) | IL 3A Joliet West Boys Sectional(IL), 2013-05-16(#3) |
| B-400 | 11 | 49.22 | Engel, Malcolm (2013) (Glenbrook South, IL) | IL 3A Boys State Prelims(IL), 2013-05-24(#7) |
| B-400 | 12 | 49.28 | Ray, Trevor (2013) (Lakes, IL) | IL 2A Vernon Hills Boys Sectional(IL), 2013-05-17(#1) |
| B-400 | 13 | 49.31 | Thompson, Marvell (2013) (Thornton Fractional North, IL) | IL 3A Boys State Prelims(IL), 2013-05-24(#3) |
| B-400 | 14 | 49.32 | Filip, Scott (2013) (Lake Park, IL) | USATF National Junior Olympics - YM/YW(NC), 2013-07-24(#4) |
| B-400 | 15 | 49.42 | Smith, Brandon (2013) (Bartlett, IL) | IL 3A Hoffman Estates Boys Sectional(IL), 2013-05-17(#1) |
| B-400 | 16 | 49.49 | Anyiwo, Matt (2014) (Homewood-Flossmoor, IL) | USATF National Junior Olympics - YM/YW(NC), 2013-07-24(#25) |
| B-400 | 17 | 49.56 | Warren, Josh (2013) (Whitney Young, IL) | IL 3A St. Ignatius Boys Sectional(IL), 2013-05-16(#1) |
| B-400 | 18 | 49.57 | Kirby, Zach (2013) (St. Charles North, IL) | IL 3A Hoffman Estates Boys Sectional(IL), 2013-05-17(#2) |
| B-400 | 19 | 49.65 | Meadows, Jack (2014) (Lincoln-Way Central, IL) | IL 3A Homewood Flossmoor Boys Sectional(IL), 2013-05-16(#2) |
| B-400 | 20 | 49.73 | Harriel, James (2014) (Bloom Township, IL) | IL 3A Homewood Flossmoor Boys Sectional(IL), 2013-05-16(#3) |
| B-400 | 21 | 49.78 | Burks, Frederick (2014) (Proviso East, IL) | IL 3A St. Ignatius Boys Sectional(IL), 2013-05-16(#2) |
| B-400 | 22 | 49.80 | Hill, Demonte (2013) (Evanston Township, IL) | TT Classic(IL), 2013-05-04(#1) |
| B-400 | 23 | 49.81 | Broger, Jeff (2013) (South Elgin, IL) | Upstate Eight Conference Boys(IL), 2013-05-09(#2) |
| B-400 | 24 | 49.96 | Nash, Quenten (2014) (Crete-Monee, IL) | Southland Athletic Conference Boys(IL), 2013-05-08(#2) |
| B-400 | 25 | 50.03 | Davis, Roosevelt (2016) (East St. Louis-Senior, IL) | St. Clair County Boys Championships(IL), 2013-04-30(#2) |
| B-400 | 26 | 50.07 | Steele, Micaiah (2013) (Wheaton North, IL) | DuPage Valley Conference Boys(IL), 2013-05-10(#2) |
| B-400 | 27 | 50.11 | Freivogel, Josh (2014) (Belleville West, IL) | Southwest Conference Boys(IL), 2013-05-08(#1) |
| B-400 | 28 | 50.18 | Giovannelli, Michael (2014) (Glenwood, IL) | Central State 8 Conf Boys(IL), 2013-05-10(#2) |
| B-400 | 29 | 50.20 | Davis, Justin (2013) (Geneva, IL) | IL 3A Hoffman Estates Boys Sectional(IL), 2013-05-17(#3) |
| B-400 | 29 | 50.20 | Franklin, John (2014) (Whitney Young, IL) | Blue Smoke Invitational(IL), 2013-04-06(#1) |
| B-400 | 31 | 50.22 | Moss, Ty (2015) (Neuqua Valley, IL) | Paul Wallace Invitational(IL), 2013-07-20(#2) |
| B-400 | 32 | 50.23 | Skenandore, Chase (2013) (Oswego East, IL) | Southwest Prairie Conference Boys(IL), 2013-05-09(#3) |
| B-400 | 33 | 50.28 | Abreu, Antonio (2013) (Lane Technical, IL) | Chicago Public League Championships(IL), 2013-05-04(#2) |
| B-400 | 34 | 50.35 | Gleeson, Michael (2013) (Cary-Grove Community, IL) | IL 3A Huntley Boys Sectional(IL), 2013-05-17(#1) |
| B-400 | 35 | 50.38 | Eiring, Konrad (2015) (Barrington, IL) | IL 3A Buffalo Grove Boys Sectional(IL), 2013-05-16(#2) |
| B-400 | 36 | 50.47 | Rafacz, Nick (2014) (Neuqua Valley, IL) | USATF JO IL Assc Champs(IL), 2013-06-23(#4) |
| B-400 | 37 | 50.48 | Wade, Barrington (2016) (Niles North, IL) | IL 3A Niles West Boys Sectional(IL), 2013-05-16(#3) |
| B-400 | 38 | 50.49 | Bloemke, Jake (2014) (Willowbrook, IL) | IL 3A Glenbard North Boys Sectional(IL), 2013-05-17(#3) |
| B-400 | 39 | 50.52 | Kasznia, Griffin (2013) (Maine South, IL) | IL 3A Niles West Boys Sectional(IL), 2013-05-16(#4) |
| B-400 | 40 | 50.53 | Dillon, Devonte (2014) (Glenbard West, IL) | IL 3A Glenbard North Boys Sectional(IL), 2013-05-17(#4) |
| B-400 | 41 | 50.57 | Burke, John (2013) (Waubonsie Valley, IL) | Red Ribbon Invitational(IL), 2013-04-27(#3) |
| B-400 | 42 | 50.60 | Fraiser, Micah (2013) (Bloom Township, IL) | Jim Arnold Invitational(IL), 2013-04-27(#3) |
| B-400 | 43 | 50.67 | Carter, Deion (2013) (H L Richards, IL) | IL 3A Downers Grove North Boys Sectional(IL), 2013-05-17(#1) |
| B-400 | 44 | 50.68 | Grahovec, Kevin (2014) (Marmion Academy, IL) | Suburban Christian Conference Boys(IL), 2013-05-08(#2) |
| B-400 | 45 | 50.69 | Chapman, Peyton (2015) (Bolingbrook, IL) | IL 3A Downers Grove North Boys Sectional(IL), 2013-05-17(#2) |
| B-400 | 46 | 50.72 | Hill, Michael (2014) (Hononegah, IL) | NIC-10 Boys Conference(IL), 2013-05-10(#2) |
| B-400 | 47 | 50.73 | Basso, Gio (2015) (Lake Park, IL) | USATF National Junior Olympics - 15/16(NC), 2013-07-25(#1) |
| B-400 | 48 | 50.81 | Arguelles, Francisco (2013) (Granite City, IL) | Southwest Conference Boys(IL), 2013-05-08(#3) |
| B-400 | 49 | 50.86 | Streator, Tremain (2015) (Collinsville, IL) | Southwest Conference Boys(IL), 2013-05-08(#4) |
| B-400 | 50 | 50.87 | Swan, Antwan (2016) (Lyons Township, IL) | IL 3A Boys State Prelims(IL), 2013-05-24(#17) |
| B-400 | 51 | 50.95 | Giovannelli, Dominick (2015) (Glenwood, IL) | IL 2A Lanphier Boys Sectional(IL), 2013-05-17(#2) |
| B-400 | 52 | 50.97 | Middlebrook, Donald (2013) (Deerfield, IL) | IL 3A Niles West Boys Sectional(IL), 2013-05-16(#5) |
| B-400 | 53 | 51.07 | Giordano, Nick (2013) (Lake Forest, IL) | IL 3A Buffalo Grove Boys Sectional(IL), 2013-05-16(#3) |
| B-400 | 54 | 51.08 | Espinosa, Zac (2015) (Neuqua Valley, IL) | EIU Race at State(IL), 2013-05-25(#4) |
| B-400 | 55 | 51.10 | Roels, Timothy (2014) (Geneva, IL) | Upstate Eight Conference Boys(IL), 2013-05-09(#6) |
| B-400 | 55 | 51.10 | Sundberg, Will (2013) (York Community, IL) | York / Palatine Boys Dual(IL), 2013-04-06(#1) |
| B-400 | 57 | 51.13 | Lyle, Garrett (2015) (Bloomington, IL) | AAU Area 14 National Qualifier(IL), 2013-06-09(#3) |
| B-400 | 58 | 51.15 | Ingram, Daniel (2013) (Minooka Community, IL) | Southwest Prairie Conference Boys(IL), 2013-05-09(#4) |
| B-400 | 59 | 51.17 | Gibson, Elliot (2013) (St. Ignatius, IL) | Carlin Nalley Invitational(IL), 2013-05-04(#4) |
| B-400 | 60 | 51.18 | Decoursey, Cameron (2013) (Wheeling, IL) | Palatine Relays(IL), 2013-04-27(#3) |
| B-400 | 60 | 51.18 | Stainback, Tyshawn (2015) (East St. Louis-Senior, IL) | IL 2A Salem Boys Sectional(IL), 2013-05-16(#5) |
| B-400 | 62 | 51.20 | Prajka, Nick (2013) (Carl Sandburg, IL) | Towner Hawk Classic(IL), 2013-04-04(#2) |
| B-400 | 63 | 51.22 | Stone, Darwin (2013) (Crystal Lake Central, IL) | Fox Valley Conf Boys Championships(IL), 2013-05-10(#3) |
| B-400 | 63 | 51.22 | Pierce, Joe (2014) (Lake Park, IL) | Upstate Eight Conference Boys(IL), 2013-05-09(#7) |
| B-400 | 65 | 51.24 | Harris, Daniel (2014) (Bradley-Bourbonnais, IL) | IL 3A Homewood Flossmoor Boys Sectional(IL), 2013-05-16(#6) |
| B-400 | 65 | 51.24 | Spearman, Emanuel (2015) (Homewood-Flossmoor, IL) | USATF Region 7 Junior Olympics(IL), 2013-07-14(#1) |
| B-400 | 65 | 51.24 | Jones, Dayquan (2014) (Rock Island, IL) | Kiwannis ABC Invitational(IL), 2013-04-06(#2) |
| B-400 | 68 | 51.26 | Parthemore, Ryan (2015) (Carl Sandburg, IL) | SWSC-Blue Boys Championships(IL), 2013-05-08(#2) |
| B-400 | 69 | 51.27 | Warren, Johnathon (2015) (Bloomington, IL) | Big 12 Conference Boys(IL), 2013-05-09(#2) |
| B-400 | 69 | 51.27 | Rogers, Dylan (2016) (Harry D Jacobs, IL) | IL 3A Huntley Boys Sectional(IL), 2013-05-17(#3) |
| B-400 | 69 | 51.27 | Rhode, Jimmy (2014) (Lyons Township, IL) | IL 3A Boys State Prelims(IL), 2013-05-24(#21) |
| B-400 | 72 | 51.28 | Licata, Joe (Carl Sandburg, IL) | SWSC-Blue Boys Championships(IL), 2013-05-08(#3) |
| B-400 | 73 | 51.30 | Starks, Abreon (2014) (Hinsdale South, IL) | Yavorski Invitational(IL), 2013-04-26(#1) |
| B-400 | 73 | 51.30 | Iwaskiewicz, Andrew (2013) (York Community, IL) | WSC-Silver Boys(IL), 2013-05-11(#2) |
| B-400 | 73 | 51.30 | Manson, Jalil (2013) (Plainfield East, IL) | USATF JO IL Assc Champs(IL), 2013-06-23(#6) |
| B-400 | 76 | 51.31 | Simmonds, Nick (2013) (Belleville West, IL) | IL 3A Rock Island Boys Sectional(IL), 2013-05-17(#5) |
| B-400 | 76 | 51.31 | Ward, De'Ondre (2014) (Simeon Career Academy, IL) | IL 3A Lyons Township Boys Sectional(IL), 2013-05-17(#3) |
| B-400 | 78 | 51.32 | Whitcomb, Josh (2013) (Belvidere North, IL) | NIC-10 Boys Conference(IL), 2013-05-10(#3) |
| B-400 | 78 | 51.32 | Senesac, Cole (Lincoln-Way Central, IL) | SWSC-Blue Boys Championships(IL), 2013-05-08(#4) |
| B-400 | 80 | 51.33 | Suggs, Tevin (2013) (Belleville West, IL) | Winston Brown Invitational(IL), 2013-04-20(#4) |
| B-400 | 81 | 51.34 | Bryant, Kevin (2014) (Plainfield East, IL) | Hunt Invitational(IL), 2013-04-26(#2) |
| B-400 | 82 | 51.36 | Kulling, Kevin (2013) (Naperville Central, IL) | DuPage Valley Conference Boys(IL), 2013-05-10(#3) |
| B-400 | 83 | 51.40 | Mccray, Demontez (2015) (O'Fallon, IL) | Highland F/S Boys Invitational(IL), 2013-04-09(#1) |
| B-400 | 83 | 51.40 | Gaines, Jawan (2015) (Fremd, IL) | Mid Suburban League Boys Championships(IL), 2013-05-10(#3) |
| B-400 | 83 | 51.40 | Childress, Fred (Thornton Township, IL) | TT Classic(IL), 2013-05-04(#2) |
| B-400 | 86 | 51.41 | Streater, Tremain (2016) (Collinsville, IL) | Marion Freeman Invitational(MO), 2013-04-27(#7) |
| B-400 | 87 | 51.43 | King, Bryant (Homewood-Flossmoor, IL) | Paul Wallace Invitational(IL), 2013-07-20(#4) |
| B-400 | 88 | 51.45 | Herlocker, Bryant (2014) (New Trier Township, IL) | Central Suburban League South-Boys(IL), 2013-05-10(#5) |
| B-400 | 89 | 51.48 | Arthur, Jared (Normal Community West, IL) | Bloomington-Normal Inter City Classic - Boys(IL), 2013-04-24(#2) |
| B-400 | 90 | 51.49 | Chapp, Matt (2015) (Riverside-Brookfield, IL) | IL 2A Boys State Prelims(IL), 2013-05-24(#18) |
| B-400 | 91 | 51.50 | Askew, Jwauhn (2014) (East St. Louis-Senior, IL) | Fred Lyons Invitational(MO), 2013-04-18(#2) |
| B-400 | 91 | 51.50 | Hetzler, Matt (2014) (Carl Sandburg, IL) | Sandburg Boys Triangular(IL), 2013-04-16(#1) |
| B-400 | 93 | 51.51 | Prunty, Benny (2013) (West Aurora, IL) | AAU Area 14 National Qualifier(IL), 2013-06-09(#5) |
| B-400 | 93 | 51.51 | Gardner, Keith (2013) (East St. Louis-Senior, IL) | Marion Freeman Invitational(MO), 2013-04-27(#8) |
| B-400 | 95 | 51.52 | Subias, Luis (2013) (Larkin, IL) | Upstate Eight Conference Boys(IL), 2013-05-09(#8) |
| B-400 | 96 | 51.55 | Strange, Steven (2016) (Oswego, IL) | IL 3A Joliet West Boys Sectional(IL), 2013-05-16(#5) |
| B-400 | 97 | 51.56 | Forrest, Dajour (2016) (Normal Community West, IL) | AAU Area 14 National Qualifier(IL), 2013-06-09(#2) |
| B-400 | 98 | 51.58 | Milsap, Adam (2014) (Naperville North, IL) | Gus Scott Co-Ed Invitational(IL), 2013-04-12(#1) |
| B-400 | 98 | 51.58 | Alejandro, Rj (2013) (St. Patrick, IL) | East Suburban Catholic Conference Boys(IL), 2013-05-09(#2) |
| B-400 | 100 | 51.60 | Neese, Kyle (2013) (Waubonsie Valley, IL) | Valley Boys Triangular(IL), 2013-04-30(#1) |
| B-400 | 101 | 51.66 | Borchardt, George (2015) (Bradley-Bourbonnais, IL) | IL 3A Homewood Flossmoor Boys Sectional(IL), 2013-05-16(#7) |
| B-400 | 101 | 51.66 | Glass, Christian (2015) (Plainfield East, IL) | Southwest Prairie Conference Boys(IL), 2013-05-09(#5) |
| B-400 | 103 | 51.68 | Arguelles, Javie (2013) (Granite City, IL) | IL 3A Rock Island Boys Sectional(IL), 2013-05-17(#6) |
| B-400 | 103 | 51.68 | Crane, River (2014) (Palatine, IL) | IL 3A Buffalo Grove Boys Sectional(IL), 2013-05-16(#4) |
| B-400 | 105 | 51.69 | Berendt, Jorden (2014) (Batavia, IL) | Upstate Eight Conference Boys(IL), 2013-05-09(#9) |
| B-400 | 106 | 51.70 | Sullivan, Billy (2014) (Grant Community, IL) | Antioch / Grant Boys Dual(IL), 2013-04-08(#1) |
| B-400 | 106 | 51.70 | Simmons, Tarik (2014) (Crete-Monee, IL) | Blue Smoke Invitational(IL), 2013-04-06(#4) |
| B-400 | 106 | 51.70 | Rainey-Brown, Jeremy (2013) (Payton College Preparatory, IL) | IL 3A St. Ignatius Boys Sectional(IL), 2013-05-16(#6) |
| B-400 | 106 | 51.70 | Dalton, Corey (Bremen, IL) | Oak Lawn Invitational(IL), 2013-04-13(#1) |
| B-400 | 106 | 51.70 | Rodriguez, Alex (2015) (Brother Rice, IL) | Towner Hawk Classic(IL), 2013-04-04(#4) |
| B-400 | 106 | 51.70 | Gerrits, Mark (2013) (Lakes, IL) | IL 2A Vernon Hills Boys Sectional(IL), 2013-05-17(#4) |
| B-400 | 106 | 51.70 | Gaines, Derrick (2013) (Fremd, IL) | MSL-West Division Boys Championship(IL), 2013-04-24(#1) |
| B-400 | 113 | 51.73 | Rhode, Pat (2014) (Lyons Township, IL) | Wanner Knights Invitational(IL), 2013-04-26(#6) |
| B-400 | 113 | 51.73 | Paoletti, Nick (2013) (Glenbard North, IL) | DuPage Valley Conference Boys(IL), 2013-05-10(#4) |
| B-400 | 113 | 51.73 | Perry, Rene (2015) (Edwardsville, IL) | Granite City Invitational(IL), 2013-04-12(#2) |
| B-400 | 116 | 51.77 | Wilkerson, Delonne (2013) (Oak Park-River Forest, IL) | Jim Arnold Invitational(IL), 2013-04-27(#6) |
| B-400 | 116 | 51.77 | Halloway, Vernon (2014) (Springfield, IL) | IL 3A Rock Island Boys Sectional(IL), 2013-05-17(#7) |
| B-400 | 118 | 51.80 | Reardon, Andrew (2013) (St. Ignatius, IL) | Carlin Nalley Invitational(IL), 2013-05-04(#7) |
| B-400 | 118 | 51.80 | Shelton, Demetrius (2013) (Bremen, IL) | Oak Lawn Invitational(IL), 2013-04-13(#2) |
| B-400 | 120 | 51.84 | Glaze, Khalil (2013) (Waukegan , IL) | Lake County Boys Championships(IL), 2013-05-03(#5) |
| B-400 | 121 | 51.85 | Ibarra, Eric (2015) (Romeoville, IL) | Carlin Nalley Invitational(IL), 2013-05-04(#8) |
| B-400 | 121 | 51.85 | Hall, Nathan (2013) (Glenbard West, IL) | WSC-Silver Boys(IL), 2013-05-11(#4) |
| B-400 | 123 | 51.88 | Powers, Aarin (2013) (West Aurora, IL) | AAU Area 14 National Qualifier(IL), 2013-06-09(#8) |
| B-400 | 124 | 51.90 | Stewart, Christian (2014) (Crete-Monee, IL) | LW West Warrior Invitational(IL), 2013-04-26(#5) |
| B-400 | 125 | 51.91 | Scott, Evan (2014) (Normal Community, IL) | Bloomington-Normal Inter City Classic - Boys(IL), 2013-04-24(#4) |
| B-400 | 126 | 51.93 | Phillips, Adam (2014) (Barrington, IL) | Mid Suburban League Boys Championships(IL), 2013-05-10(#5) |
| B-400 | 127 | 51.95 | Dale, Jamison (2013) (Jones College Prep, IL) | Lane Tech Boys Open(IL), 2013-04-11(#1) |
| B-400 | 128 | 51.96 | Walkosz, Adrian (2014) (Lockport Township , IL) | SWSC-Blue Boys Championships(IL), 2013-05-08(#5) |
| B-400 | 129 | 51.98 | Crepeau, Michael (2013) (Prairie Ridge, IL) | Fox Valley Conf Boys Championships(IL), 2013-05-10(#6) |
| B-400 | 130 | 51.99 | Scaccia, Anthony (2015) (Batavia, IL) | Jim Arnold Invitational(IL), 2013-04-27(#7) |
| B-400 | 131 | 52.00 | Dewgard, Roland (2014) (Neuqua Valley, IL) | York Boys Triangular(IL), 2013-04-03(#3) |
| B-400 | 132 | 52.02 | Simpson, Matthew (2015) (Homewood-Flossmoor, IL) | USATF Region 7 Junior Olympics(IL), 2013-07-14(#2) |
| B-400 | 132 | 52.02 | Zeien, Logan (2014) (Belvidere North, IL) | IL 3A Huntley Boys Sectional(IL), 2013-05-17(#4) |
| B-400 | 134 | 52.03 | Dyrdahl, Mark (2013) (Hononegah, IL) | NIC-10 Boys Conference(IL), 2013-05-10(#4) |
| B-400 | 135 | 52.04 | Jones, Anton (2013) (Yorkville, IL) | NIB-12 Conference Boys(IL), 2013-05-10(#7) |
| B-400 | 136 | 52.06 | Schwartz, Tyler (2013) (Huntley, IL) | Palatine Relays(IL), 2013-04-27(#8) |
| B-400 | 136 | 52.06 | Thomas, Tovari (2013) (J Sterling Morton, IL) | Carlin Nalley Invitational(IL), 2013-05-04(#9) |
| B-400 | 136 | 52.06 | Konstantelos, John (2013) (McHenry, IL) | Fox Valley Conf Boys Championships(IL), 2013-05-10(#7) |
| B-400 | 139 | 52.08 | Roche, Matt (2013) (Moline, IL) | IL 3A Rock Island Boys Sectional(IL), 2013-05-17(#8) |
| B-400 | 140 | 52.09 | Kopfman, Drew (2014) (Crystal Lake Central, IL) | Fox Valley Conf Boys Championships(IL), 2013-05-10(#8) |
| B-400 | 141 | 52.10 | Clingerman, Andrew (2013) (Palatine, IL) | York / Palatine Boys Dual(IL), 2013-04-06(#2) |
| B-400 | 141 | 52.10 | Perry, Kokeith (2014) (Bolingbrook, IL) | Terry Englund Relays(IL), 2013-04-20(#2) |
| B-400 | 141 | 52.10 | Smith, Daniel (2014) (Niles North, IL) | USATF Youth Outdoor Champs (YM/YW)(IL), 2013-06-30(#16) |
| B-400 | 144 | 52.11 | Howe, Jacob (2014) (Belvidere North, IL) | NIC-10 Boys Conference(IL), 2013-05-10(#5) |
| B-400 | 145 | 52.13 | Holmes, Kerry (2013) (Belleville West, IL) | Eastern Relays(KY), 2013-04-27(#18) |
| B-400 | 146 | 52.14 | Pavlovich, Drew (Lake Zurich, IL) | North Suburban Conference Boys(IL), 2013-05-09(#5) |
| B-400 | 146 | 52.14 | Everly, Josh (2015) (Normal Community, IL) | IL 3A Rock Island Boys Sectional(IL), 2013-05-17(#9) |
| B-400 | 148 | 52.16 | Spaccapaniccia, Daniel (2014) (Naperville Central, IL) | IL 3A Joliet West Boys Sectional(IL), 2013-05-16(#6) |
| B-400 | 148 | 52.16 | Denley, Jackson (2015) (Niles West, IL) | Central Suburban League South-Boys(IL), 2013-05-10(#7) |
| B-400 | 150 | 52.20 | Bueno, Adan (2013) (Jefferson, IL) | Jefferson Boys Triangular(IL), 2013-04-30(#1) |
| B-400 | 150 | 52.20 | Kendziera, Dave (2013) (Prospect, IL) | Prospect Boys Triangular(IL), 2013-04-02(#1) |
| B-400 | 150 | 52.20 | Bussan, Alex (2013) (Cary-Grove Community, IL) | Al Bohrer Invitational(IL), 2013-04-06(#2) |
| B-400 | 153 | 52.22 | Hassler, Carson (2013) (Naperville Central, IL) | Wanner Knights Invitational(IL), 2013-04-26(#9) |
| B-400 | 154 | 52.24 | Hyland, Trent (2014) (Hinsdale Central, IL) | WSC-Silver Boys(IL), 2013-05-11(#8) |
| B-400 | 155 | 52.25 | Howorth, Dillon (2014) (Yorkville, IL) | IL 3A Joliet West Boys Sectional(IL), 2013-05-16(#7) |
| B-400 | 156 | 52.26 | Edwards, Michael (2016) (Zion-Benton Twnshp, IL) | Wanner Knights Invitational(IL), 2013-04-26(#10) |
| B-400 | 156 | 52.26 | Newman, Dan (2013) (St. Charles East, IL) | Upstate Eight Conference Boys(IL), 2013-05-09(#10) |
| B-400 | 158 | 52.27 | Booker, Lemonte (2013) (Carl Sandburg, IL) | Bill Jackson Invitational(IL), 2013-05-03(#1) |
| B-400 | 159 | 52.28 | Robinson, Cody (Joliet West, IL) | SWSC-Blue Boys Championships(IL), 2013-05-08(#6) |
| B-400 | 160 | 52.29 | Hardnett, Blake (2013) (Glenwood, IL) | Titan Co-Ed Invitational(IL), 2013-04-22(#2) |
| B-400 | 160 | 52.29 | Bernardo, Nick (2013) (Buffalo Grove, IL) | Mustang Classic(IL), 2013-04-26(#2) |
| B-400 | 162 | 52.30 | Groot, Garrett (Fremd, IL) | Bill Jackson Invitational(IL), 2013-05-03(#2) |
| B-400 | 163 | 52.35 | Reed, Malcolm (2014) (Grayslake Central, IL) | IL 2A Vernon Hills Boys Sectional(IL), 2013-05-17(#7) |
| B-400 | 164 | 52.37 | Hall, Nate (2013) (Glenbard West, IL) | Jim Arnold Invitational(IL), 2013-04-27(#9) |
| B-400 | 165 | 52.38 | Stearns, Kyle (2014) (York Community, IL) | Wanner Knights Invitational(IL), 2013-04-26(#11) |
| B-400 | 165 | 52.38 | Haynie, Spencer (2013) (United Township, IL) | Galesburg Boys ABC Invitational(IL), 2013-04-12(#2) |
| B-400 | 165 | 52.38 | Mitchell, Demitius (2015) (Thornton Township, IL) | USATF JO IL Assc Champs(IL), 2013-06-23(#9) |
| B-400 | 165 | 52.38 | Kirby, Joe (2014) (Wheaton North, IL) | Jim Arnold Invitational(IL), 2013-04-27(#10) |
| B-400 | 169 | 52.39 | Slattery, Collin (2015) (Carl Sandburg, IL) | IL 3A Downers Grove North Boys Sectional(IL), 2013-05-17(#4) |
| B-400 | 170 | 52.40 | Janca, Mitchell (2014) (Buffalo Grove, IL) | MSL-East Division Boys Championship(IL), 2013-04-24(#2) |
| B-400 | 170 | 52.40 | Hollendonner, Ian (Carl Sandburg, IL) | Oak Lawn Invitational(IL), 2013-04-13(#3) |
| B-400 | 170 | 52.40 | Hutsalyuk, Pavlo (2015) (Lane Technical, IL) | St. Ignatius / Lane Tech Co-Ed Dual(IL), 2013-04-03(#2) |
| B-400 | 173 | 52.42 | Brown, Jeremiah (2013) (O'Fallon, IL) | IL 3A Rock Island Boys Sectional(IL), 2013-05-17(#11) |
| B-400 | 174 | 52.44 | Boadu, Chris (2013) (Bolingbrook, IL) | Carlin Nalley Invitational(IL), 2013-05-04(#10) |
| B-400 | 175 | 52.45 | Crump, Tredarius (Zion-Benton Twnshp, IL) | North Suburban Conference Boys(IL), 2013-05-09(#6) |
| B-400 | 176 | 52.48 | Lopez, Christian (2015) (Auburn, IL) | Wanner Knights Invitational(IL), 2013-04-26(#12) |
| B-400 | 177 | 52.49 | Garcia, Julius (2013) (Neuqua Valley, IL) | IL 3A Joliet West Boys Sectional(IL), 2013-05-16(#8) |
| B-400 | 178 | 52.50 | Centeno, Robert (2014) (Reavis, IL) | Harry McDaniel Classic(IL), 2013-05-02(#2) |
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| | | See more performances for B-400 | | |
