Events
Race Directors

Ultra Running Events in Illinois

All 50 KM 50 Miles 100 KM 100 Miles 6 Hours 12 Hours 24 Hours

Upcoming Events

Date Event City Distances
06/13/26 Yellowbrick Backyard Ultra Peoria Backyard
07/17/26 CMAR Trail Races Chillicothe 50 KM , 50 Miles , 100 Miles
07/17/26 Pinetum Mind Games Endurance Event Dixon 6 Hours , 12 Hours , 24 Hours
07/17/26 Cry Me a River! Chillicothe 50 KM , 100 KM , 100 Miles
07/18/26 Quail Ridge Farm Backyard Ultra Albion Backyard
07/18/26 Road Warrior 50k Carol Stream 33.5 Miles
08/08/26 Howl at the Moon 8 Hour Danville 4 Hours , 8 Hours
08/08/26 Watershed Endurance 6Hr/3Hr Run Edwardsville 6 Hours
08/15/26 Next Loop Endurance Series - Busse Woods IL Elk Grove Village 50 KM
08/15/26 40/50 Mile Challenge, Busse Woods, IL Elk Grove Village 40 Miles , 50 Miles
08/22/26 Comlara 12 Hour Sunrise-Sunset Hudson 6 Hours , 12 Hours
08/22/26 Shawnee Hills 100 Ozark 50 KM , 100 KM , 100 Miles
08/29/26 The Next Loop: Endurance Series - Half Day Forest Preserve, Il Vernon Hills 50 KM
08/29/26 40/50 Mile Challenge, Half Day Forest Preserve IL Vernon Hills 40 Miles , 50 Miles
09/05/26 Temptation 200 Ultras Forest City 50 KM , 100 KM , 150 KM , 200 KM
09/12/26 The Last Boyscout Goreville Backyard
09/12/26 Timely Nonsense Chicago 6 Hours , 12 Hours
09/13/26 Rock Cut Hobo Trail Runs Rockford 50 KM
09/19/26 Limestone Rocks! Kankakee 4 Hours , 8 Hours
09/26/26 Hindsight Ultra Trail Runs Dixon 50 KM , 100 KM , 100 Miles
09/26/26 Half Day at the Lake Evanston 6 Hours , 12 Hours
10/03/26 The Hennepin Hundred Sterling 50 KM , 50 Miles , 50 Miles , 100 Miles
10/10/26 Des Plaines River Trail Races Vernon Hills 50 KM , 50 Miles
10/10/26 Farmdale Trail Run East Peoria 30 Miles , 50 Miles , 100 Miles
10/10/26 Arrowhead Endurance Run Johnston City 6 Hours , 12 Hours , 12 Hours , 24 Hours
10/17/26 Shake Your Trail Feather Trail Run Charleston 50 KM , 100 KM
10/24/26 Fancy Nonsense 25k/50k Willow Springs 50 KM
11/07/26 King Street Backyard Ultra Colona Backyard
11/14/26 Tunnel Hill 100 Vienna 50 Miles , 50 Miles , 100 KM , 100 Miles
11/14/26 McNotagain Fall Trail Runs Pekin 30 Miles , 50 Miles
11/14/26 Forge Trail Run Festival Lemont 60 KM
03/20/27 American Bottoms 113 Columbia 56 Miles , 113 Miles
03/27/27 Chicago Lakefront: Spring Version Chicago 50 KM
03/27/27 Skunk Ape 806 Dixon 33.75 Miles
04/24/27 Childish Nonsense Palatine 50 KM , 50 Miles

Past Events

Date Event City Distances
05/30/26 Elsa Chicken Plucker Backyard Ultra Charleston Backyard
05/16/26 Operation GRANITE X Granite City 40 Miles
05/16/26 CHICAGO 7-11 Hour Endurance Run Willow Springs 7 Hours , 11 Hours
05/16/26 Kennekuk Road Runners - Dogs and Cats Oakwood 5 Hours
05/16/26 Galena Sky Trail Races Galena 4 Hours , 8 Hours
05/02/26 OUTLAST Chicago Palatine 6 Hours
05/02/26 Hearts Desire 6-Hour Endurance Run Herrin 6 Hours
04/18/26 Loud Thunder 50 Illinois City 50 KM , 50 Miles
04/18/26 Earth Day 50K Crystal Lake 50 KM
04/11/26 Potawatomi Pekin 30 Miles , 50 Miles , 100 Miles , 150 Miles , 200 Miles
03/28/26 Clinton Lake DeWitt 30 Miles
03/28/26 Schon Park 3/6/9 Endurance Runs Glen Carbon 6 Hours , 9 Hours
01/11/26 Winter Challenge Cross Country Chicago 6 Hours
01/10/26 Frozen Gnome Crystal Lake 50 KM
12/06/25 Arctic Frog Run (IL) Libertyville 50 KM
11/08/25 Paleozoic Trail Runs - Cambrian Fall III Willow Springs 50 KM
11/01/25 Chicago Lakefront: Fall Version Chicago 50 KM , 50 Miles
09/27/25 Miles of Madness Pekin 6 Hours , 12 Hours , 24 Hours
08/27/25 United Center Challenge Chicago 50 KM
08/23/25 Terra Sans Pave Trail Runs Morton Grove 8 Hours
02/22/25 Bald Unyielding Twilight Trail Trial Mount Morris 6 Hours , 12 Hours
11/02/24 Charleston Challenge 40 Mile Relay Charleston 40 Miles
08/16/24 We run the night 12 hour and a 5k Morris 12 Hours
08/16/24 Anybody 12 Hour Morris 12 Hours
08/10/24 Crush Cary 12 Hour Cary 12 Hours
08/10/24 Dog Days of Summer Aurora 4 Hours , 6 Hours , 12 Hours
04/20/24 Zoomies 50K Aurora 50 KM
04/18/24 Take the 4 x 4 x 48 Operation Uniquecorn Charity Challenge Jacksonville 48 Miles
03/23/24 Paleozoic Trail Runs - Devonian Spring II Chicago 50 KM
03/22/24 4x4x48 Challenge - Illinois Naperville 48 Miles
01/13/24 Chillbilly 2 Hour and 8 Hour Endurance Chillicothe 8 Hours
09/03/23 St. Jude Runs - Kilometers for Kids 10 x 5k Quincy 50 KM
08/19/23 Painful Elimination Hudson Backyard , Backyard
08/19/23 Illiniwek Race The Night Hampton 50 KM
07/23/22 Christmas in July Races Lisle 6 Hours , 12 Hours , 24 Hours
06/18/22 The C.R.C. Summer Solstice 24 Hour Run/Relay Plainfield 24 Hours
10/30/21 McNotAgain Pekin 8 Hours , 30 Miles
10/23/21 Outer Belt Ultras Chicago 50 KM , 50 Miles , 100 KM , 100 Miles , 210 Miles
09/18/21 Forge Ultra 50K Lemont 50 KM
08/28/21 IM not Crazy 100k Morris 100 KM
08/14/21 Nuclear Meltdown Elimination Race Byron 8 Hours , 12 Hours
05/01/21 Secret Trail Poker Run Woodstock 8 Hours
03/20/21 Paleozoic Trail Runs - Silurian Spring II Palo Park 50 KM
01/04/20 Last Man/Woman Standing Edwardsville Backyard
11/09/19 Paleozoic Trail Runs - Cambrian Fall II Palos Park 50 KM
10/27/19 Run of the Dead Elimination Run Liberyville 34 Miles
09/28/19 Oak Point Trail Run Golconda 50 KM
10/20/18 Ondessonk Trail Races Ozark 50 KM
09/15/18 Evergreen Lake Ultras Hudson 50 KM , 34 Miles , 51 Miles , 100 KM
03/25/17 Paleozoic Trail Runs - Carboniferous Spring Wood Springs 50 KM
11/12/16 Paleozoic Trail Runs - Silurian Fall Palos Park 50 KM
05/13/16 CRUD Brimfield 8 Hours , 24 Hours
11/14/15 Paleozoic Trail Runs - Permian Fall Wood Springs 50 KM
12/27/14 Little Woods Ultra Race Edwardsville 6 Hours
10/18/14 Forest Glen Trail Run Westville 50 KM
01/31/14 Aeries February Freeze Grafton Unknown Miles , 12 Hours
11/16/13 Paleozoic Trail Runs - Carboniferous Fall Palos Park 50 KM
04/14/12 McNaughton Park Pekin 30 Miles , 50 KM , 50 Miles , 100 Miles , 150 Miles
01/14/12 Frosty Fifty Crystal Lake 50 KM , 50 Miles
12/18/10 Deer Grove FA50 Palatine 50 KM
11/27/10 Old School Ultra Libertyville 6 Hours
07/17/10 Sunburn Six in the Stix Bartlett 6 Hours
10/23/05 DeTonty Willow Springs 50 KM
10/12/86 AMJA 100 Km Ultramarathon Chicago 50 Miles , 100 KM
12/19/82 Running Central Ultra Challenge East Peoria 50 KM

Weekly Newsletter

A roundup of the week's content and most recent race results. Sent once a week on Thursday.

Recent Results

South Ridge Trail Challenge
Allison Park, PA - 18 finishers
50 KM
Momentus Backyard Ultra
Monroe, NC - 74 finishers
Backyard
Connor's Claims Ultra
Stockton, UT - 24 finishers
50 Miles | 50 KM
Hoof It on the Hill
Cherry Creek, NY - 9 finishers
52 KM
North Fork 50 Mile/50K
Pine, CO - 255 finishers
50 Miles | 50 KM
Smith Rock Classic
Terrebonne, OR - 185 finishers
50 Miles | 50 KM
Infinitus
Ripton, VT - 36 finishers
100 Miles | 88 KM
Rabid Raccoon 100
Beaver Falls, PA - 275 finishers
100 Miles | 100 KM
Cinderella Trail - Spring
Oakland, CA - 28 finishers
50 KM
Mohican Trail Run
Loudonville, OH - 251 finishers
100 Miles | 50 Miles
View All Results