| Event | Rank | Mark | By | Meet |
| B-4x400 | 1 | 3:15.24 | Boys Relay (East St. Louis-Senior, IL) (US#25) | IL 3A Boys State Finals(IL), 2015-05-30(#1) |
| B-4x400 | 2 | 3:16.87 | Boys Relay (Neuqua Valley, IL) (US#55) | IL 3A Boys State Finals(IL), 2015-05-30(#2) |
| B-4x400 | 3 | 3:17.00 | Boys Relay (Evanston Township, IL) (US#60) | IL 3A Boys State Finals(IL), 2015-05-30(#3) |
| B-4x400 | 4 | 3:17.43 | Boys Relay (Homewood-Flossmoor, IL) (US#78) | IL 3A Boys State Finals(IL), 2015-05-30(#4) |
| B-4x400 | 5 | 3:18.36 | Boys Relay (Grant Community, IL) | IL 3A Boys State Finals(IL), 2015-05-30(#5) |
| B-4x400 | 6 | 3:19.21 | Boys Relay (Bloomington, IL) | IL 3A Boys State Finals(IL), 2015-05-30(#6) |
| B-4x400 | 7 | 3:19.30 | Boys Relay (Edwardsville, IL) | IL 3A Boys State Prelims(IL), 2015-05-29(#3) |
| B-4x400 | 8 | 3:19.49 | Boys Relay (Lakes, IL) | IL 3A Palatine Boys Sectional(IL), 2015-05-21(#1) |
| | | National Elites above. State Elites below | | |
| B-4x400 | 9 | 3:19.76 | Boys Relay (Minooka Community, IL) | IL 3A Plainfield North Boys Sectional(IL), 2015-05-21(#2) |
| B-4x400 | 10 | 3:19.92 | Boys Relay (Oak Park-River Forest, IL) | IL 3A Boys State Finals(IL), 2015-05-30(#8) |
| B-4x400 | 11 | 3:19.97 | Boys Relay (Plainfield East, IL) | IL 3A Plainfield North Boys Sectional(IL), 2015-05-21(#3) |
| B-4x400 | 12 | 3:20.20 | Boys Relay (Fremd, IL) | IL 3A Palatine Boys Sectional(IL), 2015-05-21(#2) |
| B-4x400 | 13 | 3:20.40 | Boys Relay (Cary-Grove Community, IL) | IL 3A Boys State Prelims(IL), 2015-05-29(#9) |
| B-4x400 | 14 | 3:20.77 | Boys Relay (Harry D Jacobs, IL) | IL 3A Guilford Boys Sectional(IL), 2015-05-21(#3) |
| B-4x400 | 15 | 3:21.19 | Boys Relay (Barrington, IL) | Palatine Relays(IL), 2015-05-02(#2) |
| B-4x400 | 16 | 3:21.67 | Boys Relay (Lyons Township, IL) | IL 3A Boys State Prelims(IL), 2015-05-29(#14) |
| B-4x400 | 17 | 3:21.71 | Boys Relay (Libertyville, IL) | Wanner Knights Invitational(IL), 2015-05-01(#2) |
| B-4x400 | 18 | 3:21.85 | Boys Relay (Bloom Township, IL) | IL 3A Boys State Prelims(IL), 2015-05-29(#15) |
| B-4x400 | 19 | 3:22.26 | Boys Relay (St. Charles East, IL) | IL 3A West Aurora Boys Sectional(IL), 2015-05-21(#1) |
| B-4x400 | 20 | 3:22.27 | Boys Relay (Zion-Benton Twnshp, IL) | Wanner Knights Invitational(IL), 2015-05-01(#3) |
| B-4x400 | 21 | 3:22.65 | Boys Relay (Warren Township, IL) | IL 3A Palatine Boys Sectional(IL), 2015-05-21(#4) |
| B-4x400 | 22 | 3:22.82 | Boys Relay (Glenwood, IL) | IL 2A Boys State Finals(IL), 2015-05-30(#6) |
| B-4x400 | 23 | 3:23.08 | Boys Relay (Jefferson, IL) | IL 3A Guilford Boys Sectional(IL), 2015-05-21(#4) |
| B-4x400 | 24 | 3:23.23 | Boys Relay (Lemont, IL) | IL 3A Downers Grove South Boys Sectional(IL), 2015-05-22(#1) |
| B-4x400 | 25 | 3:23.33 | Boys Relay (Plainfield South, IL) | Minooka Boys Invitational(IL), 2015-04-18(#2) |
| B-4x400 | 26 | 3:23.34 | Boys Relay (Glenbard West, IL) | WSC-Silver Boys Conference Meet(IL), 2015-05-16(#2) |
| B-4x400 | 27 | 3:23.35 | Boys Relay (Belleville East, IL) | Marion Freeman Invitational(MO), 2015-05-02(#2) |
| B-4x400 | 28 | 3:23.41 | Boys Relay (Normal Community West, IL) | IL 3A Normal West Boys Sectional(IL), 2015-05-22(#4) |
| B-4x400 | 29 | 3:23.50 | Boys Relay (Huntley, IL) | Stevenson Patriot Relays(IL), 2015-04-16(#1) |
| B-4x400 | 29 | 3:23.50 | Boys Relay (Wheaton North, IL) | Haake Boys Invitational(IL), 2015-04-18(#1) |
| B-4x400 | 31 | 3:23.62 | Boys Relay (Geneva, IL) | IL 3A Boys State Prelims(IL), 2015-05-29(#19) |
| B-4x400 | 32 | 3:24.47 | Boys Relay (Niles West, IL) | IL 3A Loyola Academy Boys Sectional(IL), 2015-05-21(#2) |
| B-4x400 | 33 | 3:24.52 | Boys Relay (Hononegah, IL) | IL 3A Guilford Boys Sectional(IL), 2015-05-21(#5) |
| B-4x400 | 34 | 3:24.58 | Boys Relay (Naperville Central, IL) | IL 3A Plainfield North Boys Sectional(IL), 2015-05-21(#5) |
| B-4x400 | 35 | 3:24.59 | Boys Relay (Thornton Township, IL) | IL 3A Homewood-Flossmoor Boys Sectional(IL), 2015-05-21(#3) |
| B-4x400 | 36 | 3:24.71 | Boys Relay (Waubonsie Valley, IL) | IL 3A Plainfield North Boys Sectional(IL), 2015-05-21(#6) |
| B-4x400 | 37 | 3:24.79 | Boys Relay (Proviso West, IL) | Midwest Prep Invitational(IN), 2015-04-18(#2) |
| B-4x400 | 38 | 3:25.22 | Boys Relay (Pekin Community, IL) | IL 3A Normal West Boys Sectional(IL), 2015-05-22(#5) |
| B-4x400 | 39 | 3:25.37 | Boys Relay (Collinsville, IL) | IL 3A Normal West Boys Sectional(IL), 2015-05-22(#6) |
| B-4x400 | 40 | 3:25.63 | Boys Relay (Belleville West, IL) | Southwest Boys Conference Meet(IL), 2015-05-13(#3) |
| B-4x400 | 41 | 3:25.66 | Boys Relay (Lane Technical, IL) | IL 3A Boys State Prelims(IL), 2015-05-29(#22) |
| B-4x400 | 42 | 3:25.88 | Boys Relay (Galesburg, IL) | Sterling Night Relays(IL), 2015-05-01(#1) |
| B-4x400 | 43 | 3:25.93 | Boys Relay (Springfield, IL) | IL 3A Normal West Boys Sectional(IL), 2015-05-22(#8) |
| B-4x400 | 44 | 3:26.01 | Boys Relay (Crete-Monee, IL) | IL 3A Homewood-Flossmoor Boys Sectional(IL), 2015-05-21(#4) |
| B-4x400 | 45 | 3:26.06 | Boys Relay (Wheaton-Warrenville South, IL) | IL 3A York Boys Sectional(IL), 2015-05-22(#3) |
| B-4x400 | 46 | 3:26.07 | Boys Relay (Bolingbrook, IL) | Palatine Relays(IL), 2015-05-02(#4) |
| B-4x400 | 47 | 3:26.27 | Boys Relay (New Trier Township, IL) | IL 3A Loyola Academy Boys Sectional(IL), 2015-05-21(#3) |
| B-4x400 | 48 | 3:26.80 | Boys Relay (Batavia, IL) | IL 3A West Aurora Boys Sectional(IL), 2015-05-21(#3) |
| B-4x400 | 49 | 3:26.81 | Boys Relay (Whitney Young, IL) | IL 3A Northside Prep Boys Sectional(IL), 2015-05-22(#3) |
| B-4x400 | 50 | 3:26.84 | Boys Relay (Naperville North, IL) | DuPage Valley Boys Conference Meet(IL), 2015-05-15(#3) |
| B-4x400 | 51 | 3:26.89 | Boys Relay (Oswego, IL) | Roger Wilcox Invitational(IL), 2015-05-01(#1) |
| B-4x400 | 52 | 3:26.97 | Boys Relay (J Sterling Morton, IL) | IL 3A Lyons Township Boys Sectional(IL), 2015-05-22(#2) |
| B-4x400 | 53 | 3:27.00 | Boys Relay (Adlai E Stevenson, IL) | Glenbrook North Spartan Relays(IL), 2015-05-01(#1) |
| B-4x400 | 54 | 3:27.05 | Boys Relay (Lincoln-Way North, IL) | LWW Warrior Invitational(IL), 2015-05-01(#1) |
| B-4x400 | 54 | 3:27.05 | Boys Relay (Lake Forest, IL) | IL 3A Palatine Boys Sectional(IL), 2015-05-21(#7) |
| B-4x400 | 56 | 3:27.17 | Boys Relay (Thornton Fractional North, IL) | Midwest Prep Invitational(IN), 2015-04-18(#4) |
| B-4x400 | 57 | 3:27.19 | Boys Relay (St. Charles North, IL) | IL 3A West Aurora Boys Sectional(IL), 2015-05-21(#4) |
| B-4x400 | 58 | 3:27.20 | Boys Relay (Deerfield, IL) | Glenbrook North Spartan Relays(IL), 2015-05-01(#2) |
| B-4x400 | 58 | 3:27.20 | Boys Relay (Plainfield North, IL) | Winston Brown Invitational(IL), 2015-04-25(#3) |
| B-4x400 | 60 | 3:27.32 | Boys Relay (Prospect, IL) | IL 3A Loyola Academy Boys Sectional(IL), 2015-05-21(#4) |
| B-4x400 | 60 | 3:27.32 | Boys Relay (O'Fallon, IL) | IL 3A Normal West Boys Sectional(IL), 2015-05-22(#9) |
| B-4x400 | 62 | 3:27.42 | Boys Relay (Loyola Academy, IL) | IL 3A Loyola Academy Boys Sectional(IL), 2015-05-21(#5) |
| B-4x400 | 63 | 3:27.57 | Boys Relay (Rock Island, IL) | Sterling Night Relays(IL), 2015-05-01(#2) |
| B-4x400 | 64 | 3:28.03 | Boys Relay (Downers Grove South, IL) | IL 3A Downers Grove South Boys Sectional(IL), 2015-05-22(#3) |
| B-4x400 | 65 | 3:28.10 | Boys Relay (Lincoln-Way Central, IL) | Southwest Suburban Red Boys Conference Meet(IL), 2015-05-14(#1) |
| B-4x400 | 66 | 3:28.36 | Boys Relay (Granite City, IL) | IL 3A Normal West Boys Sectional(IL), 2015-05-22(#10) |
| B-4x400 | 67 | 3:28.54 | Boys Relay (Joliet Central, IL) | Southwest Suburban Blue Boys Conference Meet(IL), 2015-05-14(#2) |
| B-4x400 | 68 | 3:28.60 | Boys Relay (Downers Grove North, IL) | WSC-Silver Boys Frosh/JV/Open Meet (IL), 2015-05-09 |
| B-4x400 | 69 | 3:28.68 | Boys Relay (Riverside-Brookfield, IL) | IL 3A Lyons Township Boys Sectional(IL), 2015-05-22(#3) |
| B-4x400 | 70 | 3:28.82 | Boys Relay (Carl Sandburg, IL) | Southwest Suburban Blue Boys Conference Meet(IL), 2015-05-14(#3) |
| B-4x400 | 71 | 3:29.15 | Boys Relay (Centennial, IL) | IL 2A Mattoon Boys Sectional(IL), 2015-05-21(#3) |
| B-4x400 | 72 | 3:29.31 | Boys Relay (West Chicago, IL) | IL 3A West Aurora Boys Sectional(IL), 2015-05-21(#5) |
| B-4x400 | 73 | 3:29.34 | Boys Relay (Glenbrook South, IL) | IL 3A Loyola Academy Boys Sectional(IL), 2015-05-21(#7) |
| B-4x400 | 74 | 3:29.47 | Boys Relay (Lockport Township , IL) | Dick Beebe Track Classic(IL), 2015-04-18(#2) |
| B-4x400 | 75 | 3:29.52 | Boys Relay (Larkin, IL) | IL 3A West Aurora Boys Sectional(IL), 2015-05-21(#6) |
| B-4x400 | 76 | 3:29.66 | Boys Relay (Maine East, IL) | Wanner Knights Invitational(IL), 2015-05-01(#6) |
| B-4x400 | 77 | 3:29.69 | Boys Relay (Willowbrook, IL) | IL 3A York Boys Sectional(IL), 2015-05-22(#4) |
| B-4x400 | 78 | 3:29.76 | Boys Relay (McHenry, IL) | Fox Valley Boys Conference meet(IL), 2015-05-15(#4) |
| B-4x400 | 79 | 3:29.92 | Boys Relay (Addison Trail, IL) | WSC-Gold Boys Conference Meet(IL), 2015-05-15(#2) |
| B-4x400 | 80 | 3:30.08 | Boys Relay (Metea Valley, IL) | IL 3A West Aurora Boys Sectional(IL), 2015-05-21(#7) |
| B-4x400 | 81 | 3:30.09 | Boys Relay (Lake Park, IL) | Bud Mohns Invitational(IL), 2015-04-18(#2) |
| B-4x400 | 82 | 3:30.22 | Boys Relay (York Community, IL) | Wanner Knights Invitational(IL), 2015-05-01(#11) |
| B-4x400 | 83 | 3:30.27 | Boys Relay (Providence Catholic, IL) | Chicago Catholic League Championships(IL), 2015-05-16(#1) |
| B-4x400 | 84 | 3:30.32 | Boys Relay (Plainfield Central, IL) | Hunt Invitational(IL), 2015-04-30(#2) |
| B-4x400 | 85 | 3:30.50 | Boys Relay (Glenbrook North, IL) | Glenbrook North Spartan Relays(IL), 2015-05-01(#4) |
| B-4x400 | 86 | 3:30.72 | Boys Relay (Niles North, IL) | CSL-North Boys Conference Meet(IL), 2015-05-15(#2) |
| B-4x400 | 87 | 3:31.10 | Boys Relay (Normal Community, IL) | IL 3A Normal West Boys Sectional(IL), 2015-05-22(#11) |
| B-4x400 | 88 | 3:31.11 | Boys Relay (John Hersey, IL) | Mid-Suburban League Boys Championships(IL), 2015-05-15(#3) |
| B-4x400 | 89 | 3:31.21 | Boys Relay (Crystal Lake South, IL) | Fox Valley Boys Conference meet(IL), 2015-05-15(#5) |
| B-4x400 | 90 | 3:31.31 | Boys Relay (Buffalo Grove, IL) | MSL-East Boys Divisional Championship(IL), 2015-04-28(#3) |
| B-4x400 | 91 | 3:31.64 | Boys Relay (Oswego East, IL) | Southwest Prairie Boys Conference Meet(IL), 2015-05-14(#4) |
| B-4x400 | 92 | 3:31.65 | Boys Relay (Yorkville, IL) | Crystal Lake Central Boys Invitational(IL), 2015-05-01(#4) |
| B-4x400 | 93 | 3:31.67 | Boys Relay (Auburn, IL) | Elgin Boys Invitational(IL), 2015-04-17(#1) |
| B-4x400 | 94 | 3:32.01 | Boys Relay (Brother Rice, IL) | Oak Lawn Invitational(IL), 2015-04-18(#2) |
| B-4x400 | 95 | 3:32.03 | Boys Relay (Argo Community, IL) | South Suburban Red Boys Conference Meet(IL), 2015-05-14(#1) |
| B-4x400 | 96 | 3:32.11 | Boys Relay (Quincy, IL) | IL 3A Normal West Boys Sectional(IL), 2015-05-22(#12) |
| B-4x400 | 97 | 3:32.21 | Boys Relay (Crystal Lake Central, IL) | IL 3A Guilford Boys Sectional(IL), 2015-05-21(#6) |
| B-4x400 | 98 | 3:32.31 | Boys Relay (Prairie Ridge, IL) | IL 3A Guilford Boys Sectional(IL), 2015-05-21(#7) |
| B-4x400 | 98 | 3:32.31 | Boys Relay (Dundee-Crown, IL) | Fox Valley Boys Conference meet(IL), 2015-05-15(#6) |
| B-4x400 | 100 | 3:32.49 | Boys Relay (Hoffman Estates, IL) | Red Ribbon Classic(IL), 2015-05-02(#3) |
| B-4x400 | 101 | 3:32.55 | Boys Relay (United Township, IL) | Galesburg Boys ABC Invitational(IL), 2015-04-17(#2) |
| B-4x400 | 102 | 3:32.81 | Boys Relay (Joliet West, IL) | IL 3A Plainfield North Boys Sectional(IL), 2015-05-21(#11) |
| B-4x400 | 103 | 3:32.95 | Boys Relay (Glenbard East, IL) | IL 3A York Boys Sectional(IL), 2015-05-22(#7) |
| B-4x400 | 104 | 3:33.15 | Boys Relay (Harlem, IL) | NIC-10 Boys Conference Meet(IL), 2015-05-15(#5) |
| B-4x400 | 105 | 3:33.31 | Boys Relay (Glenbard North, IL) | DuPage Valley Boys Conference Meet(IL), 2015-05-15(#2) |
| B-4x400 | 106 | 3:33.32 | Boys Relay (DeKalb, IL) | Gib Seegers Invitational(IL), 2015-05-01(#4) |
| B-4x400 | 107 | 3:33.36 | Boys Relay (Maine South, IL) | IL 3A Loyola Academy Boys Sectional(IL), 2015-05-21(#10) |
| B-4x400 | 108 | 3:33.43 | Boys Relay (Moline, IL) | IL 3A Normal West Boys Sectional(IL), 2015-05-22(#13) |
| B-4x400 | 109 | 3:33.51 | Boys Relay (Conant, IL) | MSL-West Boys Divisional Championship(IL), 2015-04-28(#3) |
| B-4x400 | 110 | 3:33.52 | Boys Relay (Highland Park, IL) | IL 3A Loyola Academy Boys Sectional(IL), 2015-05-21(#11) |
| B-4x400 | 111 | 3:33.75 | Boys Relay (Shepard, IL) | South Suburban Red Boys Conference Meet(IL), 2015-05-14(#3) |
| B-4x400 | 112 | 3:33.77 | Boys Relay (Grayslake Central, IL) | Fox Valley Boys Conference meet(IL), 2015-05-15(#7) |
| B-4x400 | 113 | 3:33.85 | Boys Relay (Bartlett, IL) | IL 3A West Aurora Boys Sectional(IL), 2015-05-21(#9) |
| B-4x400 | 114 | 3:34.02 | Boys Relay (Jones College Prep, IL) | IL 3A Northside Prep Boys Sectional(IL), 2015-05-22(#4) |
| B-4x400 | 115 | 3:34.08 | Boys Relay (Hinsdale Central, IL) | LWW Warrior Invitational(IL), 2015-05-01(#4) |
| B-4x400 | 116 | 3:34.19 | Boys Relay (Lake Zurich, IL) | IL 3A Palatine Boys Sectional(IL), 2015-05-21(#10) |
| B-4x400 | 117 | 3:34.40 | Boys Relay (Grayslake North, IL) | IL 3A Palatine Boys Sectional(IL), 2015-05-21(#11) |
| B-4x400 | 118 | 3:34.71 | Boys Relay (Rolling Meadows, IL) | Northern Illinois Invitational(IL), 2015-05-08(#5) |
| B-4x400 | 119 | 3:34.75 | Boys Relay (Fenton, IL) | Metro Suburban West Boys Conference Meet(IL), 2015-05-15(#3) |
| B-4x400 | 120 | 3:34.88 | Boys Relay (Maine West, IL) | Prospect Boys Relays(IL), 2015-04-11(#5) |
| B-4x400 | 121 | 3:34.95 | Boys Relay (Belvidere North, IL) | NIC-10 Boys Conference Meet(IL), 2015-05-15(#6) |
| B-4x400 | 122 | 3:34.99 | Boys Relay (Palatine, IL) | Palatine Relays(IL), 2015-05-02(#5) |
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| | | See more performances for B-4x400 | | |
