| 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) |
| | | National Elites above. State Elites below | | |
| B-400 | 4 | 50.36 | Helmin, Andrew (2013) (Providence Catholic, IL) | Gazelle Sports Elite Meet(MI), 2013-02-16(#3) |
| B-400 | 5 | 50.46 | Bransby, Sam (2014) (Naperville Central, IL) | Proviso West Boys Invitational(IL), 2013-02-23(#1) |
| B-400 | 6 | 50.48 | Ray, Trevor (2013) (Lakes, IL) | Lake Michigan Invitational(WI), 2013-03-16(#3) |
| B-400 | 7 | 50.72 | Kirby, Zach (2013) (St. Charles North, IL) | Illinois Top Times Championships - Class 3A(IL), 2013-03-23(#3) |
| B-400 | 8 | 50.85 | Wilson, Chris (2014) (Minooka Community, IL) | Illinois Top Times Championships - Class 3A(IL), 2013-03-23(#5) |
| B-400 | 9 | 50.91 | Broger, Jeff (2013) (South Elgin, IL) | Illinois Top Times Championships - Class 3A(IL), 2013-03-23(#6) |
| B-400 | 10 | 51.08 | Nash, Quenten (2014) (Crete-Monee, IL) | Gene Armer Invitational(IL), 2013-03-16(#2) |
| B-400 | 11 | 51.13 | Harriel, James (2014) (Bloom Township, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#2) |
| B-400 | 12 | 51.21 | Abreu, Antonio (2013) (Lane Technical, IL) | Centennial Charger Invitational(IL), 2013-03-02(#1) |
| B-400 | 12 | 51.21 | Burke, John (2013) (Waubonsie Valley, IL) | Upstate Eight Conf Boys Indoor(IL), 2013-03-16(#2) |
| B-400 | 14 | 51.38 | Pierce, Joe (2014) (Lake Park, IL) | Illinois Top Times Championships - Class 3A(IL), 2013-03-23(#8) |
| B-400 | 15 | 51.47 | Burks, Frederick (2014) (Proviso East, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#3) |
| B-400 | 16 | 51.52 | Burns, Matt (2014) (Willowbrook, IL) | York Boys Invitational(IL), 2013-03-01(#3) |
| B-400 | 17 | 51.65 | Askew, Jwauhn (2014) (East St. Louis-Senior, IL) | U-Kentucky Invitational(KY), 2013-02-16(#17) |
| B-400 | 18 | 51.70 | Freivogel, Josh (2014) (Belleville West, IL) | Illinois Top Times Championships - Class 3A(IL), 2013-03-23(#10) |
| B-400 | 19 | 51.77 | Kendziera, Dave (2013) (Prospect, IL) | U-High Invitational #2(IL), 2013-02-22(#1) |
| B-400 | 20 | 51.98 | Thompson, Marvell (2013) (Thornton Fractional North, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#4) |
| B-400 | 21 | 52.05 | Milsap, Adam (2014) (Naperville North, IL) | DuPage Valley Conf Boys Indoor(IL), 2013-03-15(#2) |
| B-400 | 22 | 52.21 | Steele, Micaiah (2013) (Wheaton North, IL) | DuPage Valley Conf Boys Indoor(IL), 2013-03-15(#3) |
| B-400 | 23 | 52.37 | Moss, Ty (2015) (Neuqua Valley, IL) | Upstate Eight Conf Boys Indoor(IL), 2013-03-16(#5) |
| B-400 | 24 | 52.41 | O'Donoghue, Austin (Homewood-Flossmoor, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#5) |
| B-400 | 25 | 52.50 | Dillon, Devonte (2014) (Glenbard West, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#1) |
| B-400 | 26 | 52.56 | Subias, Luis (2013) (Larkin, IL) | Upstate Eight Conf Boys Indoor(IL), 2013-03-16(#6) |
| B-400 | 27 | 52.60 | Simmons, Taris (2014) (Crete-Monee, IL) | Argo Boys Invitational(IL), 2013-03-09(#2) |
| B-400 | 28 | 52.69 | Dunham, Conor (2014) (St. Ignatius, IL) | Chicago Catholic League Indoor Championships(IL), 2013-03-17(#2) |
| B-400 | 29 | 52.78 | Klamm, Pat (2013) (Evanston Township, IL) | Lake Michigan Invitational(WI), 2013-03-16(#5) |
| B-400 | 30 | 52.79 | Franklin, John (2014) (Whitney Young, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#7) |
| B-400 | 30 | 52.79 | Swan, Antwan (2016) (Lyons Township, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#2) |
| B-400 | 32 | 52.84 | Espinosa, Zac (2015) (Neuqua Valley, IL) | Upstate Eight Conf Boys Indoor(IL), 2013-03-16(#7) |
| B-400 | 33 | 52.85 | Flamer, Todd (2013) (United Township, IL) | Silver Streak Last Chance Invitational(IL), 2013-03-16(#1) |
| B-400 | 34 | 52.87 | Fraiser, Micah (2013) (Bloom Township, IL) | Proviso East Midwest Classic(IL), 2013-03-23(#8) |
| B-400 | 35 | 52.88 | Rhode, Jimmy (2014) (Lyons Township, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#3) |
| B-400 | 36 | 52.92 | Gardner, Keith (2013) (East St. Louis-Senior, IL) | U-Kentucky Invitational(KY), 2013-02-16(#28) |
| B-400 | 37 | 52.96 | Ticho, Gideon (2013) (Hinsdale Central, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#4) |
| B-400 | 38 | 53.00 | Hollendonner, Ian (Carl Sandburg, IL) | Joliet West Invitational(IL), 2013-02-23(#1) |
| B-400 | 39 | 53.01 | Jopes, Michael (2014) (Naperville Central, IL) | DuPage Valley Conf Boys Indoor(IL), 2013-03-15(#4) |
| B-400 | 40 | 53.02 | Ingram, Daniel (2013) (Minooka Community, IL) | Lockport Indoor Invitational(IL), 2013-03-16(#2) |
| B-400 | 41 | 53.05 | Kinfe, Michael (2014) (Wheaton-Warrenville South, IL) | DuPage Valley Conf Boys Indoor(IL), 2013-03-15(#5) |
| B-400 | 42 | 53.09 | Janca, Mitchell (2014) (Buffalo Grove, IL) | Mid Suburban League Invitational(IL), 2013-03-16(#3) |
| B-400 | 43 | 53.10 | Hall, Nathan (2013) (Glenbard West, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#5) |
| B-400 | 44 | 53.16 | Davis, Roosevelt (2016) (East St. Louis-Senior, IL) | SIU Boys Invitational(IL), 2013-03-02(#3) |
| B-400 | 44 | 53.16 | Escobar, Alex (2014) (Hoffman Estates, IL) | Mid Suburban League Invitational(IL), 2013-03-16(#4) |
| B-400 | 46 | 53.23 | Kampe, Sean (2013) (St. Ignatius, IL) | ICOPS Invitational(IL), 2013-03-03(#5) |
| B-400 | 47 | 53.31 | Rozell, Chris (2014) (Brother Rice, IL) | Chicago Catholic League Indoor Championships(IL), 2013-03-17(#3) |
| B-400 | 48 | 53.32 | Haynie, Spencer (2013) (United Township, IL) | Silver Streak Last Chance Invitational(IL), 2013-03-16(#2) |
| B-400 | 49 | 53.39 | Roels, Timothy (2014) (Geneva, IL) | Upstate Eight Conf Boys Indoor(IL), 2013-03-16(#8) |
| B-400 | 50 | 53.41 | Brocious, Matt (2014) (Wheaton-Warrenville South, IL) | DuPage Valley Conf Boys Indoor(IL), 2013-03-15(#6) |
| B-400 | 51 | 53.43 | Rainey-Brown, Jeremy (2013) (Payton College Preparatory, IL) | Gene Armer Invitational(IL), 2013-03-16(#5) |
| B-400 | 51 | 53.43 | Riley, James (2015) (Hinsdale Central, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#1) |
| B-400 | 53 | 53.44 | Towns, Lionel (2014) (Oak Park-River Forest, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#6) |
| B-400 | 53 | 53.44 | Simmonds, Nick (2013) (Belleville West, IL) | Charleston EIU Boys Invitational(IL), 2013-03-16(#5) |
| B-400 | 55 | 53.45 | Hill, Michael (2014) (Hononegah, IL) | NIC-10 Conf Boys Indoor(IL), 2013-03-13(#2) |
| B-400 | 56 | 53.47 | Dix, Devaughn (2013) (Bloomington, IL) | Mahomet-Seymour Boys Invitational(IL), 2013-03-07(#1) |
| B-400 | 56 | 53.47 | Kovarik, Louis (Grayslake Central, IL) | Wisconsin Lutheran Invitational(WI), 2013-03-16(#1) |
| B-400 | 58 | 53.61 | Mccoy, Emmet (2014) (York Community, IL) | York Boys Invitational(IL), 2013-03-01(#6) |
| B-400 | 59 | 53.63 | Sullivan, Billy (2014) (Grant Community, IL) | Lake Michigan Invitational(WI), 2013-03-16(#7) |
| B-400 | 60 | 53.64 | Warren, Johnathon (2015) (Bloomington, IL) | Centennial Charger Invitational(IL), 2013-03-02(#5) |
| B-400 | 61 | 53.67 | Newman, Dan (2013) (St. Charles East, IL) | York Boys Invitational(IL), 2013-03-01(#7) |
| B-400 | 62 | 53.68 | Hyland, Trent (2014) (Hinsdale Central, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#7) |
| B-400 | 62 | 53.68 | Gerrits, Mark (2013) (Lakes, IL) | Lake Michigan Invitational(WI), 2013-03-16(#8) |
| B-400 | 64 | 53.69 | Ochoa, Jason (2013) (Plainfield South, IL) | Charleston EIU Boys Invitational(IL), 2013-03-16(#7) |
| B-400 | 65 | 53.70 | Clingerman, Andrew (2013) (Palatine, IL) | York Boys Invitational(IL), 2013-03-01(#8) |
| B-400 | 66 | 53.71 | Zeien, Logan (2014) (Belvidere North, IL) | NIC-10 Conf Boys Indoor(IL), 2013-03-13(#3) |
| B-400 | 67 | 53.74 | Arguelles, Francisco (2013) (Granite City, IL) | Triad Knights Invitational(IL), 2013-02-23(#1) |
| B-400 | 68 | 53.78 | Jones, Dayquan (2014) (Rock Island, IL) | Quad Cities Indoor Invitational(IL), 2013-02-27(#2) |
| B-400 | 69 | 53.80 | Bowers, Justin (2013) (Conant, IL) | Mid Suburban League Invitational(IL), 2013-03-16(#5) |
| B-400 | 70 | 53.81 | Paoletti, Nick (2013) (Glenbard North, IL) | DuPage Valley Conf Boys Indoor(IL), 2013-03-15(#7) |
| B-400 | 71 | 53.83 | Halloway, Vernon (2014) (Springfield, IL) | Illini Scholastic Open(IL), 2013-02-16(#7) |
| B-400 | 72 | 53.84 | Harris, Aaron (2014) (Fremd, IL) | Mid Suburban League Invitational(IL), 2013-03-16(#6) |
| B-400 | 73 | 53.88 | Swinehart, Brenden (2015) (Lyons Township, IL) | WSC-Silver Boys Indoor(IL), 2013-03-15(#2) |
| B-400 | 74 | 53.89 | Hudnall, Sam (2013) (Geneva, IL) | Upstate Eight Conf Boys Indoor(IL), 2013-03-16(#9) |
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