12 Hours Ultra Running Events in Illinois

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

Date	Event	City	Distances
08/22/26	Comlara 12 Hour Sunrise-Sunset	Hudson	6 Hours , 12 Hours
09/12/26	Timely Nonsense	Chicago	6 Hours , 12 Hours
09/26/26	Half Day at the Lake	Evanston	6 Hours , 12 Hours
10/10/26	Arrowhead Endurance Run	Johnston City	6 Hours , 12 Hours , 12 Hours , 24 Hours

Date	Event	City	Distances
07/17/26	Pinetum Mind Games Endurance Event	Dixon	6 Hours , 12 Hours , 24 Hours
09/27/25	Miles of Madness	Pekin	6 Hours , 12 Hours , 24 Hours
02/22/25	Bald Unyielding Twilight Trail Trial	Mount Morris	6 Hours , 12 Hours
08/16/24	Anybody 12 Hour	Morris	12 Hours
08/16/24	We run the night 12 hour and a 5k	Morris	12 Hours
08/10/24	Dog Days of Summer	Aurora	4 Hours , 6 Hours , 12 Hours
08/10/24	Crush Cary 12 Hour	Cary	12 Hours
07/23/22	Christmas in July Races	Lisle	6 Hours , 12 Hours , 24 Hours
08/14/21	Nuclear Meltdown Elimination Race	Byron	8 Hours , 12 Hours
01/31/14	Aeries February Freeze	Grafton	Unknown Miles , 12 Hours