| Event | Rank | Mark | By | Meet |
| B-400 | 1 | 49.31 | Allen, Kenneth (2013) (Thornwood, IL) (US#34) | Bolingbrook Fast Times Invitational (IL), 2013-03-23(#1) |
| B-400 | 2 | 49.71 | Harrison, Malik (2013) (Springfield, IL) (US#72) | Illinois Top Times Championships - Class 3A(IL), 2013-03-23(#1) |
| B-400 | 3 | 49.88 | Ifianayi, Paul (2015) (Elk Grove, IL) (US#90) | Illinois Top Times Championships - Class 3A(IL), 2013-03-23(#2) |
| B-400 | 4 | 50.05 | Chapman, Leroy (2013) (Antioch, IL) | Lake Michigan Invitational(WI), 2013-03-16(#2) |
| B-400 | 5 | 50.19 | Watson, Jeremiah (2014) (Urban Prep Englewood, IL) | Illinois Top Times Championships - Class 2A(IL), 2013-03-23(#1) |
| | | National Elites above. State Elites below | | |
| B-400 | 6 | 50.36 | Helmin, Andrew (2013) (Providence Catholic, IL) | Gazelle Sports Elite Meet(MI), 2013-02-16(#3) |
| B-400 | 7 | 50.46 | Bransby, Sam (2014) (Naperville Central, IL) | Proviso West Boys Invitational(IL), 2013-02-23(#1) |
| B-400 | 8 | 50.48 | Ray, Trevor (2013) (Lakes, IL) | Lake Michigan Invitational(WI), 2013-03-16(#3) |
| B-400 | 9 | 50.72 | Kirby, Zach (2013) (St. Charles North, IL) | Illinois Top Times Championships - Class 3A(IL), 2013-03-23(#3) |
| B-400 | 9 | 50.72 | Payton, Darren (2013) (Cahokia, IL) | Arkansas HS Invitational(AR), 2013-01-12(#1) |
| B-400 | 11 | 50.79 | Brady, Marlin (2014) (Cahokia, IL) | Illini Scholastic Open(IL), 2013-02-16(#1) |
| B-400 | 12 | 50.85 | Wilson, Chris (2014) (Minooka Community, IL) | Illinois Top Times Championships - Class 3A(IL), 2013-03-23(#5) |
| B-400 | 13 | 50.91 | Broger, Jeff (2013) (South Elgin, IL) | Illinois Top Times Championships - Class 3A(IL), 2013-03-23(#6) |
| B-400 | 14 | 51.03 | Holiday, Jalen (2013) (De La Salle Institute, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#1) |
| B-400 | 15 | 51.04 | Jordan, Deshawn (2013) (North Lawndale Charter, IL) | Gene Armer Invitational(IL), 2013-03-16(#1) |
| B-400 | 16 | 51.08 | Nash, Quenten (2014) (Crete-Monee, IL) | Gene Armer Invitational(IL), 2013-03-16(#2) |
| B-400 | 17 | 51.13 | Harriel, James (2014) (Bloom Township, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#2) |
| B-400 | 18 | 51.21 | Abreu, Antonio (2013) (Lane Technical, IL) | Centennial Charger Invitational(IL), 2013-03-02(#1) |
| B-400 | 18 | 51.21 | Burke, John (2013) (Waubonsie Valley, IL) | Upstate Eight Conf Boys Indoor(IL), 2013-03-16(#2) |
| B-400 | 20 | 51.26 | Medrano, Daniel (2013) (Brooks College Prep Academy, IL) | Illinois Top Times Championships - Class 2A(IL), 2013-03-23(#4) |
| B-400 | 21 | 51.38 | Pierce, Joe (2014) (Lake Park, IL) | Illinois Top Times Championships - Class 3A(IL), 2013-03-23(#8) |
| B-400 | 22 | 51.47 | Burks, Frederick (2014) (Proviso East, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#3) |
| B-400 | 23 | 51.52 | Burns, Matt (2014) (Willowbrook, IL) | York Boys Invitational(IL), 2013-03-01(#3) |
| B-400 | 24 | 51.56 | Williams, Aquintis (2013) (MacArthur, IL) | Illinois Top Times Championships - Class 2A(IL), 2013-03-23(#6) |
| B-400 | 25 | 51.65 | Askew, Jwauhn (2014) (East St. Louis-Senior, IL) | U-Kentucky Invitational(KY), 2013-02-16(#17) |
| B-400 | 26 | 51.70 | Freivogel, Josh (2014) (Belleville West, IL) | Illinois Top Times Championships - Class 3A(IL), 2013-03-23(#10) |
| B-400 | 27 | 51.74 | Allen, Damion (2014) (LaSalle-Peru, IL) | Illinois Top Times Championships - Class 2A(IL), 2013-03-23(#7) |
| B-400 | 28 | 51.77 | Kendziera, Dave (2013) (Prospect, IL) | U-High Invitational #2(IL), 2013-02-22(#1) |
| B-400 | 29 | 51.82 | Lyons, Tyran (2016) (Cahokia, IL) | Arkansas HS Invitational(AR), 2013-01-12(#23) |
| B-400 | 30 | 51.98 | Thompson, Marvell (2013) (Thornton Fractional North, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#4) |
| B-400 | 31 | 51.99 | Adeyemo, Moshood (2013) (Hillcrest, IL) | Illinois Top Times Championships - Class 2A(IL), 2013-03-23(#8) |
| B-400 | 31 | 51.99 | Smith, Daniel (Unattached, IL) | Arkansas HS Invitational(AR), 2013-01-12(#2) |
| B-400 | 33 | 52.05 | Milsap, Adam (2014) (Naperville North, IL) | DuPage Valley Conf Boys Indoor(IL), 2013-03-15(#2) |
| B-400 | 34 | 52.10 | Blievernicht, Kyle (2014) (Teutopolis, IL) | Illinois Top Times Championships - Class 1A(IL), 2013-03-22(#1) |
| B-400 | 34 | 52.10 | Harrell, Johnathan (2014) (Aurora Christian, IL) | Illinois Top Times Championships - Class 1A(IL), 2013-03-22(#2) |
| B-400 | 36 | 52.21 | Steele, Micaiah (2013) (Wheaton North, IL) | DuPage Valley Conf Boys Indoor(IL), 2013-03-15(#3) |
| B-400 | 37 | 52.23 | Lee, Malik (2013) (Brooks College Prep Academy, IL) | Coach O Invitational(IL), 2013-01-13(#2) |
| B-400 | 38 | 52.30 | Haynes, Joshua (2015) (Marian Catholic, IL) | Gazelle Sports Elite Meet(MI), 2013-02-16(#18) |
| B-400 | 39 | 52.37 | Moss, Ty (2015) (Neuqua Valley, IL) | Upstate Eight Conf Boys Indoor(IL), 2013-03-16(#5) |
| B-400 | 40 | 52.38 | Thomas, Darius (2013) (Macomb, IL) | Illinois Top Times Championships - Class 2A(IL), 2013-03-23(#9) |
| B-400 | 41 | 52.41 | O'Donoghue, Austin (Homewood-Flossmoor, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#5) |
| B-400 | 42 | 52.50 | Dillon, Devonte (2014) (Glenbard West, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#1) |
| B-400 | 43 | 52.56 | Subias, Luis (2013) (Larkin, IL) | Upstate Eight Conf Boys Indoor(IL), 2013-03-16(#6) |
| B-400 | 44 | 52.60 | Simmons, Taris (2014) (Crete-Monee, IL) | Argo Boys Invitational(IL), 2013-03-09(#2) |
| B-400 | 45 | 52.62 | Fox, Tristan (2014) (Lena-Winslow, IL) | Tri State Small School Invitational(WI), 2013-03-16(#1) |
| B-400 | 46 | 52.67 | Hennig, Joshua (2014) (Springfield Lutheran, IL) | Illinois Top Times Championships - Class 1A(IL), 2013-03-22(#3) |
| B-400 | 47 | 52.69 | Dunham, Conor (2014) (St. Ignatius, IL) | Chicago Catholic League Indoor Championships(IL), 2013-03-17(#2) |
| B-400 | 48 | 52.72 | Kucera, Nathaniel (2014) (Kaneland , IL) | Coach Di Invitational(IL), 2013-03-01(#1) |
| B-400 | 49 | 52.73 | Flynn, Morgan (2014) (Williamsville, IL) | Illinois Top Times Championships - Class 1A(IL), 2013-03-22(#4) |
| B-400 | 50 | 52.78 | Klamm, Pat (2013) (Evanston Township, IL) | Lake Michigan Invitational(WI), 2013-03-16(#5) |
| B-400 | 51 | 52.79 | Swan, Antwan (2016) (Lyons Township, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#2) |
| B-400 | 51 | 52.79 | Franklin, John (2014) (Whitney Young, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#7) |
| B-400 | 53 | 52.82 | Allyn, Nathan (2013) (MacArthur, IL) | Centennial Charger Invitational(IL), 2013-03-02(#4) |
| B-400 | 54 | 52.84 | Espinosa, Zac (2015) (Neuqua Valley, IL) | Upstate Eight Conf Boys Indoor(IL), 2013-03-16(#7) |
| B-400 | 55 | 52.85 | Horton, Grayson (2013) (Joliet Catholic Academy, IL) | Bolingbrook Fast Times Invitational (IL), 2013-03-23(#2) |
| B-400 | 55 | 52.85 | Flamer, Todd (2013) (United Township, IL) | Silver Streak Last Chance Invitational(IL), 2013-03-16(#1) |
| B-400 | 57 | 52.87 | Fraiser, Micah (2013) (Bloom Township, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#8) |
| B-400 | 58 | 52.88 | Rhode, Jimmy (2014) (Lyons Township, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#3) |
| B-400 | 59 | 52.92 | Gardner, Keith (2013) (East St. Louis-Senior, IL) | U-Kentucky Invitational(KY), 2013-02-16(#28) |
| B-400 | 60 | 52.94 | Robinson, Jaylen (2013) (Freeport, IL) | Byron Indoor Preview(IL), 2013-03-09(#1) |
| B-400 | 61 | 52.96 | Ticho, Gideon (2013) (Hinsdale Central, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#4) |
| B-400 | 62 | 52.98 | Landry, Tayvonne (2014) (Carbondale Comm, IL) | Edwardsville Tiger Indoor Invitational(IL), 2013-03-08(#2) |
| B-400 | 63 | 53.00 | Hollendonner, Ian (Carl Sandburg, IL) | Joliet West Invitational(IL), 2013-02-23(#1) |
| B-400 | 64 | 53.01 | Jopes, Michael (2014) (Naperville Central, IL) | DuPage Valley Conf Boys Indoor(IL), 2013-03-15(#4) |
| B-400 | 65 | 53.02 | Ingram, Daniel (2013) (Minooka Community, IL) | Lockport Indoor Invitational(IL), 2013-03-16(#2) |
| B-400 | 66 | 53.05 | Kinfe, Michael (2014) (Wheaton-Warrenville South, IL) | DuPage Valley Conf Boys Indoor(IL), 2013-03-15(#5) |
| B-400 | 67 | 53.09 | Janca, Mitchell (2014) (Buffalo Grove, IL) | Mid Suburban League Invitational(IL), 2013-03-16(#3) |
| B-400 | 68 | 53.10 | Hall, Nathan (2013) (Glenbard West, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#5) |
| B-400 | 69 | 53.11 | Hartz, Cornell (2013) (Sterling, IL) | Sterling Indoor Invitational(IL), 2013-03-23(#3) |
| B-400 | 70 | 53.14 | Ross, Logan (2015) (North Greene, IL) | Jacksonville Small School Invitational(IL), 2013-03-02(#1) |
| B-400 | 71 | 53.16 | Davis, Roosevelt (2016) (East St. Louis-Senior, IL) | SIU Boys Invitational(IL), 2013-03-02(#3) |
| B-400 | 71 | 53.16 | Escobar, Alex (2014) (Hoffman Estates, IL) | Mid Suburban League Invitational(IL), 2013-03-16(#4) |
| B-400 | 73 | 53.18 | Meunier, Nicholas (2016) (Gibson City-Melvin-Sibley, IL) | Illinois Top Times Championships - Class 1A(IL), 2013-03-22(#5) |
| B-400 | 74 | 53.21 | Sellers, Tevin (2013) (Lena-Winslow, IL) | Tri State Small School Invitational(WI), 2013-03-16(#3) |
| B-400 | 75 | 53.22 | Tate, Justin (2013) (De La Salle Institute, IL) | ICOPS Invitational(IL), 2013-03-03(#4) |
| B-400 | 76 | 53.23 | Kampe, Sean (2013) (St. Ignatius, IL) | ICOPS Invitational(IL), 2013-03-03(#5) |
| B-400 | 76 | 53.23 | Worby, Bryan (2015) (Pontiac, IL) | Gene Armer Invitational(IL), 2013-03-16(#4) |
| B-400 | 78 | 53.31 | Rozell, Chris (2014) (Brother Rice, IL) | Chicago Catholic League Indoor Championships(IL), 2013-03-17(#3) |
| B-400 | 79 | 53.32 | Haynie, Spencer (2013) (United Township, IL) | Silver Streak Last Chance Invitational(IL), 2013-03-16(#2) |
| B-400 | 80 | 53.39 | Roels, Timothy (2014) (Geneva, IL) | Upstate Eight Conf Boys Indoor(IL), 2013-03-16(#8) |
| B-400 | 81 | 53.40 | Patrick, Kyle (2013) (Antioch, IL) | Lake Michigan Invitational(WI), 2013-03-16(#6) |
| B-400 | 82 | 53.41 | Brocious, Matt (2014) (Wheaton-Warrenville South, IL) | DuPage Valley Conf Boys Indoor(IL), 2013-03-15(#6) |
| B-400 | 83 | 53.43 | Riley, James (2015) (Hinsdale Central, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#1) |
| B-400 | 83 | 53.43 | Rainey-Brown, Jeremy (2013) (Payton College Preparatory, IL) | Gene Armer Invitational(IL), 2013-03-16(#5) |
| B-400 | 83 | 53.43 | Reschke, Ethan (2013) (Geneseo, IL) | Sterling Indoor Invitational(IL), 2013-03-23(#5) |
| B-400 | 86 | 53.44 | Towns, Lionel (2014) (Oak Park-River Forest, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#6) |
| B-400 | 86 | 53.44 | Simmonds, Nick (2013) (Belleville West, IL) | Charleston EIU Boys Invitational(IL), 2013-03-16(#5) |
| B-400 | 88 | 53.45 | Hill, Michael (2014) (Hononegah, IL) | NIC-10 Conf Boys Indoor(IL), 2013-03-13(#2) |
| B-400 | 89 | 53.46 | Pagan, Alexander (2013) (Hampshire, IL) | Byron Indoor Preview(IL), 2013-03-09(#2) |
| B-400 | 90 | 53.47 | Dix, Devaughn (2013) (Bloomington, IL) | Mahomet-Seymour Boys Invitational(IL), 2013-03-07(#1) |
| B-400 | 90 | 53.47 | Kovarik, Louis (Grayslake Central, IL) | Wisconsin Lutheran Invitational(WI), 2013-03-16(#1) |
| B-400 | 92 | 53.52 | Gray, Kody (2014) (Highland, IL) | Charleston EIU Boys Invitational(IL), 2013-03-16(#6) |
| B-400 | 93 | 53.54 | Pokalsey, Jason (2014) (Central A & M, IL) | Illinois Top Times Championships - Class 1A(IL), 2013-03-22(#6) |
| B-400 | 94 | 53.56 | Agharese, Nathanie (2013) (Northside Prep, IL) | U-High Invitational #2(IL), 2013-02-22(#2) |
| B-400 | 95 | 53.61 | Mccoy, Emmet (2014) (York Community, IL) | York Boys Invitational(IL), 2013-03-01(#6) |
| B-400 | 96 | 53.63 | Sullivan, Billy (2014) (Grant Community, IL) | Lake Michigan Invitational(WI), 2013-03-16(#7) |
| B-400 | 97 | 53.64 | Warren, Johnathon (2015) (Bloomington, IL) | Centennial Charger Invitational(IL), 2013-03-02(#5) |
| B-400 | 98 | 53.66 | Boss, Steven (2013) (Mount Vernon, IL) | SIU Boys Invitational(IL), 2013-03-02(#4) |
| B-400 | 99 | 53.67 | Newman, Dan (2013) (St. Charles East, IL) | York Boys Invitational(IL), 2013-03-01(#7) |
| B-400 | 99 | 53.67 | Pryor, Corey (2013) (Leo Catholic, IL) | Illini Scholastic Open(IL), 2013-02-16(#5) |
| B-400 | 101 | 53.68 | Horton, Luke (2014) (Harrisburg, IL) | Edwardsville Tiger Indoor Invitational(IL), 2013-03-08(#3) |
| B-400 | 101 | 53.68 | Gerrits, Mark (2013) (Lakes, IL) | Lake Michigan Invitational(WI), 2013-03-16(#8) |
| B-400 | 101 | 53.68 | Penalfor, Draque (2014) (Sterling, IL) | Sterling Indoor Invitational(IL), 2013-03-23(#7) |
| B-400 | 101 | 53.68 | Hyland, Trent (2014) (Hinsdale Central, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#7) |
| B-400 | 101 | 53.68 | Charlton, Brett (2015) (Eureka, IL) | Illinois Top Times Championships - Class 1A(IL), 2013-03-22(#7) |
| B-400 | 106 | 53.69 | Ochoa, Jason (2013) (Plainfield South, IL) | Charleston EIU Boys Invitational(IL), 2013-03-16(#7) |
| B-400 | 107 | 53.70 | Clingerman, Andrew (2013) (Palatine, IL) | York Boys Invitational(IL), 2013-03-01(#8) |
| B-400 | 108 | 53.71 | Zeien, Logan (2014) (Belvidere North, IL) | NIC-10 Conf Boys Indoor(IL), 2013-03-13(#3) |
| B-400 | 109 | 53.74 | Wilner, Sam (2014) (Judah Christian, IL) | Jacksonville Small School Invitational(IL), 2013-03-02(#2) |
| B-400 | 109 | 53.74 | Arguelles, Francisco (2013) (Granite City, IL) | Triad Knights Invitational(IL), 2013-02-23(#1) |
| B-400 | 111 | 53.78 | Jones, Dayquan (2014) (Rock Island, IL) | Quad Cities Indoor Invitational(IL), 2013-02-27(#2) |
| B-400 | 112 | 53.80 | Bowers, Justin (2013) (Conant, IL) | Mid Suburban League Invitational(IL), 2013-03-16(#5) |
| B-400 | 113 | 53.81 | Paoletti, Nick (2013) (Glenbard North, IL) | DuPage Valley Conf Boys Indoor(IL), 2013-03-15(#7) |
| B-400 | 114 | 53.83 | Halloway, Vernon (2014) (Springfield, IL) | Illini Scholastic Open(IL), 2013-02-16(#7) |
| B-400 | 115 | 53.84 | Harris, Aaron (2014) (Fremd, IL) | Mid Suburban League Invitational(IL), 2013-03-16(#6) |
| B-400 | 116 | 53.88 | Swinehart, Brenden (2015) (Lyons Township, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#2) |
| B-400 | 117 | 53.89 | Hudnall, Sam (2013) (Geneva, IL) | Upstate Eight Conf Boys Indoor(IL), 2013-03-16(#9) |
| B-400 | 118 | 53.90 | Shroyer, Andrew (2013) (Mahomet-Seymour, IL) | Normal West Boys Invitational(IL), 2013-02-22(#7) |
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