| Event | Rank | Mark | By | Meet |
| B-300H | 1 | 37.81 | Duncan, D J (2013) (Harrisburg, IL) (US#69) | IL 2A Salem Boys Sectional(IL), 2013-05-16(#1) |
| | | National Elites above. State Elites below | | |
| B-300H | 2 | 38.47 | Payton, Imani (2014) (North Lawndale Charter, IL) | IL 2A Boys State Prelims(IL), 2013-05-24(#3) |
| B-300H | 3 | 38.50 | Moore, Chris (2013) (Cahokia, IL) | Belleville West Boys Invitational(IL), 2013-04-06(#1) |
| B-300H | 4 | 38.71 | Ogunbameru, Yemi (2013) (Thornridge, IL) | IL 2A Thornridge Boys Sectional(IL), 2013-05-16(#1) |
| B-300H | 5 | 38.84 | Hickman, Gary (2014) (Cahokia, IL) | IL 2A Salem Boys Sectional(IL), 2013-05-16(#3) |
| B-300H | 6 | 39.00 | Nauert, Dylan (2014) (Kaneland , IL) | IL 2A Sterling Boys Sectional(IL), 2013-05-17(#1) |
| B-300H | 7 | 39.07 | Farr, Jalen (2013) (Tinley Park, IL) | IL 2A Thornridge Boys Sectional(IL), 2013-05-16(#2) |
| B-300H | 8 | 39.12 | Dzik, Austin (2015) (Benet Academy, IL) | IL 2A Boys State Finals(IL), 2013-05-25(#3) |
| B-300H | 9 | 39.18 | Medrano, Daniel (2013) (Brooks College Prep Academy, IL) | IL 2A Thornridge Boys Sectional(IL), 2013-05-16(#3) |
| B-300H | 10 | 39.22 | Ege, Lucas (2015) (Burlington Central, IL) | IL 2A Boys State Finals(IL), 2013-05-25(#4) |
| B-300H | 11 | 39.63 | Billington, Michael (2014) (Bloomington Central Catholic, IL) | IL 2A Centennial Boys Sectional(IL), 2013-05-17(#2) |
| B-300H | 12 | 39.95 | Gieson, JD (2015) (Dixon, IL) | IL 2A Sterling Boys Sectional(IL), 2013-05-17(#3) |
| B-300H | 13 | 40.03 | Church, Cord (2013) (Rantoul, IL) | IL 2A Centennial Boys Sectional(IL), 2013-05-17(#3) |
| B-300H | 14 | 40.32 | Cash, Carsen (2014) (Marion, IL) | IL 2A Salem Boys Sectional(IL), 2013-05-16(#5) |
| B-300H | 15 | 40.38 | Bednarski, Chris (2013) (Wauconda Comm, IL) | IL 2A Boys State Prelims(IL), 2013-05-24(#12) |
| B-300H | 16 | 40.41 | Lefevere, Patrick (2014) (Aurora Central Catholic, IL) | Suburban Christian Conference Boys(IL), 2013-05-08(#1) |
| B-300H | 17 | 40.47 | Magradze, Sandro (2014) (Johnsburg, IL) | IL 2A Vernon Hills Boys Sectional(IL), 2013-05-17(#1) |
| B-300H | 18 | 40.51 | Cable, Aaron (2015) (Rochester, IL) | IL 2A Lanphier Boys Sectional(IL), 2013-05-17(#2) |
| B-300H | 19 | 40.55 | Ford, Max (2013) (Macomb, IL) | IL 2A Macomb Boys Sectional(IL), 2013-05-16(#1) |
| B-300H | 20 | 40.64 | Robertson, Brock (2014) (Kaneland , IL) | IL 2A Sterling Boys Sectional(IL), 2013-05-17(#4) |
| B-300H | 21 | 40.74 | Gleason, Connor (2013) (Rochester, IL) | Rochester Co-Ed Invitational(IL), 2013-04-20(#1) |
| B-300H | 22 | 40.79 | Ratliff, Jeremiah (2013) (Glenbard South, IL) | Metro Suburban Conference Boys(IL), 2013-05-10(#1) |
| B-300H | 23 | 40.84 | Nelson, Cooper (2013) (Galena, IL) | IL 1A Oregon Boys Sectional(IL), 2013-05-17(#1) |
| B-300H | 24 | 41.01 | Urycki, Cal (2014) (Metamora, IL) | IL 2A Macomb Boys Sectional(IL), 2013-05-16(#2) |
| B-300H | 25 | 41.09 | Patton, Brykell (2014) (Mount Vernon, IL) | IL 2A Salem Boys Sectional(IL), 2013-05-16(#6) |
| B-300H | 26 | 41.10 | Parsons, Tyler (2013) (Woodstock, IL) | Pete Reiff Invitational(IL), 2013-05-03(#1) |
| B-300H | 26 | 41.10 | Seeley, Justin (2014) (Geneseo, IL) | NIB-12 Conference Boys(IL), 2013-05-10(#3) |
| B-300H | 28 | 41.11 | Hooker, Dion (2015) (Sycamore, IL) | Northern Illinois Invitational(IL), 2013-05-03(#1) |
| B-300H | 29 | 41.14 | Hester, Drew (Mount Vernon, IL) | IL 2A Salem Boys Sectional(IL), 2013-05-16(#7) |
| B-300H | 30 | 41.21 | Lafferty, Tyler (2014) (East Alton-Wood River, IL) | IL 2A Lanphier Boys Sectional(IL), 2013-05-17(#3) |
| B-300H | 31 | 41.40 | Thomas, Joel (2014) (Lanphier, IL) | Springfield Boys City Meet(IL), 2013-04-30(#1) |
| B-300H | 32 | 41.42 | Pranka, Drew (2015) (Princeton, IL) | PJS Honor Roll Meet(IL), 2013-05-22(#2) |
| B-300H | 33 | 41.43 | Luesse, Aaron (2015) (Tolono Unity, IL) | IL 1A Tolono Unity Boys Sectional(IL), 2013-05-17(#2) |
| B-300H | 34 | 41.47 | Magradze, Nika (2014) (Johnsburg, IL) | Fox Valley Conf Boys Championships(IL), 2013-05-10(#4) |
| B-300H | 34 | 41.47 | Irving, Deandre (2013) (Cahokia, IL) | Belleville West Boys Invitational(IL), 2013-04-06(#8) |
| B-300H | 36 | 41.50 | Garcia, Eddie (Sycamore, IL) | IL 2A Sterling Boys Sectional(IL), 2013-05-17(#5) |
| B-300H | 37 | 41.51 | Galinovskiy, Daniel (2013) (Vernon Hills, IL) | Lake County Boys Championships(IL), 2013-05-03(#3) |
| B-300H | 38 | 41.54 | Connolly, Jacob (2013) (Jersey Comm, IL) | Titan Co-Ed Invitational(IL), 2013-04-22(#2) |
| B-300H | 38 | 41.54 | Owens, Kyle (2013) (Taylorville, IL) | Titan Co-Ed Invitational(IL), 2013-04-22(#1) |
| B-300H | 40 | 41.55 | Leitschuh, Devon (2014) (Greenville, IL) | IL 2A Lanphier Boys Sectional(IL), 2013-05-17(#5) |
| B-300H | 41 | 41.57 | Demattia, Eric (2013) (Pontiac, IL) | IL 2A Plano Boys Sectional(IL), 2013-05-17(#2) |
| B-300H | 42 | 41.61 | Deming, Cole (2015) (Hillsboro, IL) | IL 1A Litchfield Boys Sectional(IL), 2013-05-16(#2) |
| B-300H | 43 | 41.62 | Welton, James (Limestone Community, IL) | PJS Honor Roll Meet(IL), 2013-05-22(#3) |
| B-300H | 44 | 41.78 | Schmidt, Ry (2014) (Carbondale Comm, IL) | IL 3A Hoffman Estates Boys Sectional(IL), 2013-05-17(#5) |
| B-300H | 44 | 41.78 | Henry, Ryan (2014) (Saint Viator, IL) | IL 2A Vernon Hills Boys Sectional(IL), 2013-05-17(#5) |
| B-300H | 46 | 41.83 | Walsh, Kyle (2015) (Jersey Comm, IL) | Mississippi Valley Conference Boys(IL), 2013-05-08(#1) |
| B-300H | 47 | 41.85 | Watkins, Tanner (2015) (Sycamore, IL) | IL 2A Sterling Boys Sectional(IL), 2013-05-17(#6) |
| B-300H | 48 | 41.86 | Roll, Cody (2014) (Nazareth Academy, IL) | East Suburban Catholic Conference Boys(IL), 2013-05-09(#2) |
| B-300H | 49 | 41.91 | Rock, Jordan (2013) (Mahomet-Seymour, IL) | IL 2A Centennial Boys Sectional(IL), 2013-05-17(#6) |
| B-300H | 50 | 41.94 | Walters, Eric (2015) (LaSalle-Peru, IL) | NIB-12 Conference Boys(IL), 2013-05-10(#1) |
| B-300H | 50 | 41.94 | Martin, Brandon (Illiana Christian, IL) | IL 2A Thornridge Boys Sectional(IL), 2013-05-16(#4) |
| B-300H | 52 | 41.95 | White, Robert (2014) (Perspectives Charter, IL) | IL 2A Boys State Prelims(IL), 2013-05-24(#23) |
| B-300H | 52 | 41.95 | Garcia, Edgar (2015) (Sycamore, IL) | NIB-12 Conference Boys(IL), 2013-05-10(#2) |
| B-300H | 54 | 41.97 | Fitzpatrick, Lucien (2014) (Northside Prep, IL) | IL 2A Boys State Prelims(IL), 2013-05-24(#24) |
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