Find My Ultra

Ultramarathons in Illinois

All 59 ultramarathons in Illinois, from 50K to 200 miles, with the climb, the cutoff and the date for each. Every race links to its own page, where you can see how it fits the runner you are now.

RaceDistanceWhereDateClimbCutoff
Chicago Trail Running Festival50 KMBeecher, ILSep 12, 2026——
Rock Cut Hobo Trail Runs50 KMRockford, ILSep 13, 20262,100 ft8 h
Hindsight Ultra Trail Runs100 MilesDixon, ILSep 26, 20266,200 ft32 h
Hindsight Ultra Trail Runs 50 km50 KMDixon, ILSep 26, 20262,000 ft25.5 h
Hindsight Ultra Trail Runs100 KMDixon, ILSep 26, 20265,000 ft32 h
The Hennepin Hundred - Run100 MilesSterling, ILOct 3, 20262,000 ft30 h
The Hennepin Hundred - 50 km Run50 KMSterling, ILOct 3, 2026—20 h
The Hennepin Hundred - Run50 MilesSterling, ILOct 3, 2026—15 h
Des Plaines River 50 km Trail Race50 KMLibertyville, ILOct 10, 2026—11.5 h
Des Plaines River Trail Race50 MilesLibertyville, ILOct 10, 20261,350 ft11.5 h
Farmdale Trail Run100 MilesEast Peoria, ILOct 10, 20266,188 ft32 h
Farmdale Trail Run50 MilesEast Peoria, ILOct 10, 2026—22 h
Shake Your Trail Feather Trail Run50 KMCharleston, ILOct 17, 20264,000 ft10 h
Shake Your Trail Feather Trail Run100 KMCharleston, ILOct 17, 2026—24 h
Fancy Nonsense 50 km Race50 KMWillow Springs, ILOct 24, 20262,800 ft9 h
Chicago Lakefront: Fall Version50 KMChicago, ILOct 31, 2026—9 h
Chicago Lakefront: Fall Version50 MilesChicago, ILOct 31, 2026—11 h
King Street Backyard UltraBackyard (4.167-mile yards)Colona, ILNov 7, 2026——
Paleozoic Trail Runs - Cambrian Fall III50 KMWillow Springs, ILNov 7, 2026—9 h
McNotagain Fall Trail Runs50 MilesPekin, ILNov 14, 2026—13 h
The Forge Trail Run Festival60 KMLemont, ILNov 14, 20261,410 ft11 h
Tunnel Hill Race100 MilesVienna, ILNov 14, 20262,300 ft30 h
Tunnel Hill 50 Mile Race50 Miles (USATF Championship)Vienna, ILNov 14, 2026—30 h
Tunnel Hill 50 Mile Race100 KMVienna, ILNov 14, 2026—19 h
Frozen Gnome 50K50 KMCrystal Lake, ILJan 9, 20274,100 ft8.5 h
American Bottoms 113113 MilesColumbia, ILMar 20, 20271,591 ft35 h
American Bottoms 11356 MilesColumbia, ILMar 20, 2027791 ft17.5 h
Chicago Lakefront: Spring Version50 KMChicago, ILMar 27, 2027—9 h
Skunk Ape 80633.75 MilesDixon, ILMar 27, 2027—8.1 h
Potawatomi200 MilesPekin, ILApr 8, 202732,000 ft86.5 h
Potawatomi150 MilesPekin, ILApr 9, 202724,000 ft65 h
Potawatomi50 MilesPekin, ILApr 9, 20278,000 ft13.5 h
Potawatomi100 MilesPekin, ILApr 10, 202716,000 ft30 h
Earth Day 50k50 KMCrystal Lake, ILApr 17, 2027—8.5 h
Loud Thunder 50 km Race50 KMIllinois City, ILApr 17, 20274,000 ft12 h
Loud Thunder Race50 MilesIllinois City, ILApr 17, 20276,600 ft14 h
Childish Nonsense 50 km Race50 KMPalatine, ILApr 24, 2027—9 h
Childish Nonsense Race50 MilesPalatine, ILApr 24, 2027—13 h
Elsa Chicken Plucker Backyard UltraBackyard (4.167-mile yards)Charleston, ILJun 5, 2027387 ft—
Yellowbrick Backyard UltraBackyard (4.167-mile yards)Peoria, ILJun 12, 2027——
Cry Me a River!100 MilesChillicothe, ILJul 9, 202718,500 ft36 h
Cry Me a River!50 KMChillicothe, ILJul 9, 20276,500 ft—
Cry Me a River!50 MilesChillicothe, ILJul 9, 20279,300 ft20.5 h
Quail Ridge Farm Backyard UltraBackyard (4.167-mile yards)Albion, ILJul 17, 2027——
Road Warrior 50k54 KMCarol Stream, ILJul 17, 2027—9.5 h
40/50 Mile Challenge, Busse Woods, IL40 MilesElk Grove Village, ILAug 14, 2027—12 h
Next Loop Endurance Series - Busse Woods IL50 KMElk Grove Village, ILAug 14, 2027—9 h
Shawnee Hills Trail Races100 MilesOzark, ILAug 21, 20279,600 ft33 h
Shawnee Hills Trail Races50 KMOzark, ILAug 21, 20273,200 ft32 h
Shawnee Hills Trail Races100 KMOzark, ILAug 21, 20276,400 ft32 h
40/50 Mile Challenge, Half Day Forest Preserve IL40 MilesVernon Hills, ILAug 28, 20271,400 ft12 h
40/50 Mile Challenge, Half Day Forest Preserve IL50 MilesVernon Hills, ILAug 28, 20271,800 ft12 h
The Next Loop: Endurance Series - Half Day Forest Preserve, Il50 KMVernon Hills, ILAug 28, 2027—11 h
Temptation 200 Ultras200 KMForest City, ILSep 4, 20276,400 ft40 h
Temptation 200 Ultras50 KMForest City, ILSep 4, 20271,600 ft10 h
Temptation 200 Ultras100 KMForest City, ILSep 4, 20273,200 ft28.5 h
Temptation 200 Ultras150 KMForest City, ILSep 4, 2027—36.5 h
The Last BoyscoutBackyard (4.167-mile yards)Goreville, ILSep 11, 2027600 ft—
The Last MeadowBackyard (4.167-mile yards)Dixon, ILSep 11, 2027——