| Event | Rank | Mark | By | Meet |
| B-3m_XC | 602 | 15:57.20 | Wuchte, Thomas (2017) (DeKalb, IL) | ACC Charger Classic(IL), 2015-09-26(#44) |
| B-3m_XC | 603 | 15:57.63 | Wallace, Matt (2018) (Fremd, IL) | Warren Blue Devil Invitational(IL), 2015-09-19(#24) |
| B-3m_XC | 604 | 15:57.70 | Ziolkowski, Ryan (2016) (Barrington, IL) | Richard Spring Invitational(IL), 2015-09-19(#128) |
| B-3m_XC | 604 | 15:57.70 | Stewart, Jackson (2019) (St. Teresa, IL) | Metamora Runnin' Red Invitational(IL), 2015-10-10(#3) |
| B-3m_XC | 606 | 15:57.90 | McKendry, Matt (Brother Rice, IL) | Chicago Catholic League Championships(IL), 2015-10-17(#22) |
| B-3m_XC | 607 | 15:58.00 | Hutchinson, Zac (2018) (Lincoln-Way Central, IL) | First to The Finish Invitational - 3A(IL), 2015-09-12(#123) |
| B-3m_XC | 607 | 15:58.00 | Greenwalt, Ryan (2017) (Hoffman Estates, IL) | Lake Park Harvey Braus Invitational (IL), 2015-09-12(#19) |
| B-3m_XC | 607 | 15:58.00 | Swanson, Nathan (2016) (Beecher, IL) | IL 1A State Meet(IL), 2015-11-07(#44) |
| B-3m_XC | 610 | 15:58.10 | Nunez, Andrew (2017) (Plainfield South, IL) | Richard Spring Invitational(IL), 2015-09-19(#129) |
| B-3m_XC | 610 | 15:58.10 | LeMesurier, Andrew (2016) (Riverside-Brookfield, IL) | ACC Charger Classic(IL), 2015-09-26(#45) |
| B-3m_XC | 612 | 15:58.20 | Rangel, Jose (2016) (St. Charles North, IL) | Upstate Eight Conference Meet(IL), 2015-10-17(#20) |
| B-3m_XC | 612 | 15:58.20 | Gunter, Seth (2016) (Metamora, IL) | Mid Illini Conference Meet(IL), 2015-10-16(#13) |
| B-3m_XC | 614 | 15:58.30 | Thiesen, Ryan (2018) (John Hersey, IL) | Richard Spring Invitational(IL), 2015-09-19(#17) |
| B-3m_XC | 614 | 15:58.30 | Bayer, Eric (2018) (Lake Park, IL) | DuPage Valley Conference Meet(IL), 2015-10-16(#32) |
| B-3m_XC | 616 | 15:58.40 | Monaghan, Jack (2016) (Oak Park-River Forest, IL) | Lake Park Harvey Braus Invitational (IL), 2015-09-12(#20) |
| B-3m_XC | 617 | 15:58.49 | Peterson, Matt (2016) (Hoffman Estates, IL) | Minooka Flight Invitational(IL), 2015-09-19(#2) |
| B-3m_XC | 618 | 15:58.50 | Ruttens, Bo (2018) (St. Charles North, IL) | Richard Spring Invitational(IL), 2015-09-19(#130) |
| B-3m_XC | 618 | 15:58.50 | Potts, Carson (2017) (Dunlap, IL) | Mid Illini Conference Meet(IL), 2015-10-16(#14) |
| B-3m_XC | 620 | 15:58.51 | Delgado, Jaime (2016) (Warren Township, IL) | Warren Blue Devil Invitational(IL), 2015-09-19(#25) |
| B-3m_XC | 621 | 15:58.52 | Chew, Jade (2019) (Marion, IL) | IL 2A Decatur MacArthur Sectional(IL), 2015-10-31(#23) |
| B-3m_XC | 622 | 15:58.60 | Arreola, Armando (2016) (J Sterling Morton, IL) | Richard Spring Invitational(IL), 2015-09-19(#131) |
| B-3m_XC | 623 | 15:58.71 | Sutschek, Ray (2016) (Maine South, IL) | Central Suburban League Championships(IL), 2015-10-17(#32) |
| B-3m_XC | 624 | 15:58.79 | Kelly, Jack (2016) (Marist, IL) | East Suburban Catholic Conference Meet(IL), 2015-10-17(#10) |
| B-3m_XC | 625 | 15:58.90 | Milder, Jimmy (Marmion Academy, IL) | Chicago Catholic League Championships(IL), 2015-10-17(#23) |
| B-3m_XC | 626 | 15:59.00 | Hillier, Steven (2016) (Crystal Lake Central, IL) | IL 2A State Meet(IL), 2015-11-07(#93) |
| B-3m_XC | 626 | 15:59.00 | Schwankhaus, Jacob (2016) (Okawville, IL) | IL 1A State Meet(IL), 2015-11-07(#45) |
| B-3m_XC | 626 | 15:59.00 | Perez, Audiel (2018) (Mather, IL) | IL 2A State Meet(IL), 2015-11-07(#91) |
| B-3m_XC | 626 | 15:59.00 | Trost, Mike (2018) (Lincoln-Way North, IL) | IL 3A State Meet(IL), 2015-11-07(#160) |
| B-3m_XC | 630 | 15:59.13 | Cutler, Alex (2017) (Mt. Zion, IL) | IL 1A Decatur St. Teresa Sectional(IL), 2015-10-31(#23) |
| B-3m_XC | 631 | 15:59.30 | Frey, Carter (2017) (St. Charles East, IL) | ACC Charger Classic(IL), 2015-09-26(#46) |
| B-3m_XC | 632 | 15:59.39 | Spanier, Nick (2016) (Saint Viator, IL) | East Suburban Catholic Conference Meet(IL), 2015-10-17(#11) |
| B-3m_XC | 633 | 15:59.40 | Nino, Ruben (2016) (East Aurora, IL) | ACC Charger Classic(IL), 2015-09-26(#47) |
| B-3m_XC | 634 | 15:59.50 | Holden, Jack (2018) (Lawrenceville, IL) | Peoria Heights Patriot Invitational(IL), 2015-10-17(#31) |
| B-3m_XC | 634 | 15:59.50 | Elden, Charley (2016) (Geneseo, IL) | Metamora Runnin' Red Invitational(IL), 2015-10-10(#31) |
| B-3m_XC | 634 | 15:59.50 | Quinn, Nate (2016) (Lake Zurich, IL) | North Suburban Conference Meet(IL), 2015-10-17(#19) |
| B-3m_XC | 634 | 15:59.50 | Mankowski, Michael (2016) (Gardner-South Wilmington, IL) | Peoria Heights Patriot Invitational(IL), 2015-10-17(#32) |
| B-3m_XC | 638 | 15:59.60 | Quagliano, Quinton (2018) (Neuqua Valley, IL) | Richard Spring Invitational(IL), 2015-09-19(#18) |
| B-3m_XC | 638 | 15:59.60 | Herbert, Cameron (2016) (Normal University, IL) | ACC Charger Classic(IL), 2015-09-26(#48) |
| B-3m_XC | 638 | 15:59.60 | Feldhaus, Henry (2017) (Aurora Central Catholic, IL) | ACC Charger Classic(IL), 2015-09-26(#4) |
| B-3m_XC | 641 | 15:59.66 | Cain, Doug (2016) (Crystal Lake South, IL) | Warren Blue Devil Invitational(IL), 2015-09-19(#26) |
| B-3m_XC | 642 | 15:59.70 | Klancir, Jake (2017) (Oswego East, IL) | First to The Finish Invitational - 3A(IL), 2015-09-12(#126) |
| B-3m_XC | 643 | 15:59.80 | Hernandez, Alex (St. Francis, IL) | Chicago Catholic League Championships(IL), 2015-10-17(#24) |
| B-3m_XC | 643 | 15:59.80 | Rader, Austin (2017) (Waubonsie Valley, IL) | DuPage Valley Conference Meet(IL), 2015-10-16(#7) |
| B-3m_XC | 645 | 15:59.90 | Schwaba, Tom (John Hersey, IL) | Richard Spring Invitational(IL), 2015-09-19(#134) |
| B-3m_XC | 646 | 16:00.00 | Tarasuk, Andrew (2018) (Lyons Township, IL) | Lyons Township Boys Triangular(IL), 2015-10-08(#2) |
| B-3m_XC | 646 | 16:00.00 | Irvine, Ian (2016) (Romeoville, IL) | Southwest Prairie Conference Meet(IL), 2015-10-17(#20) |
| B-3m_XC | 646 | 16:00.00 | Rutkowski, Austin (2016) (Downers Grove South, IL) | IL 3A State Meet(IL), 2015-11-07(#162) |
| B-3m_XC | 646 | 16:00.00 | Moreno, Vicente (2016) (Joliet Central, IL) | IL 3A State Meet(IL), 2015-11-07(#164) |
| B-3m_XC | 646 | 16:00.00 | Lenard, Jack (2016) (Buffalo Grove, IL) | IL 3A State Meet(IL), 2015-11-07(#165) |
| B-3m_XC | 651 | 16:00.10 | Cunningham, Quinn (2018) (John Hersey, IL) | Richard Spring Invitational(IL), 2015-09-19(#18) |
| B-3m_XC | 652 | 16:00.30 | Angomas, Emmanuel (2019) (Plainfield East, IL) | Southwest Prairie Conference Meet(IL), 2015-10-17(#1) |
| B-3m_XC | 653 | 16:00.40 | Wiley, Trevor (2015) (Henry-Senachwine, IL) | Peoria Heights Patriot Invitational(IL), 2015-10-17(#33) |
| B-3m_XC | 654 | 16:00.47 | Kowalczyk, Matt (2016) (Benet Academy, IL) | Peoria Central Invitational - 3A(IL), 2015-10-03(#84) |
| B-3m_XC | 655 | 16:00.50 | Fulton, Jonah (Dixon, IL) | Big Northern Conference Meet(IL), 2015-10-17(#15) |
| B-3m_XC | 656 | 16:00.60 | Villarreal, Chris (Marengo, IL) | Big Northern Conference Meet(IL), 2015-10-17(#16) |
| B-3m_XC | 657 | 16:00.70 | Kroeger, Brendan (2016) (Quincy, IL) | Richard Spring Invitational(IL), 2015-09-19(#135) |
| B-3m_XC | 657 | 16:00.70 | Dixon, Garrett (2019) (Monticello, IL) | SJO Spartan Classic (IL), 2015-09-26(#21) |
| B-3m_XC | 659 | 16:00.98 | Foster, Patrick (2016) (Carl Sandburg, IL) | IL 3A Sandburg Regional(IL), 2015-10-24(#9) |
| B-3m_XC | 660 | 18:26.80 | Tully, Mae (2019) (Benet Academy, IL) | IL 3A Plainfield South Regional(IL), 2015-10-24(#4) |
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