Illinois
Terrain
Format
Course
Distance
1
Elevation
Difficulty
Cutoff
≥
:
Continent
Country
Region
State
Year
Season
Month
UTMB Qualification
16 races
Jul 17-18, 2026 (Fri-Sat)
Chillicothe, Illinois, United States
Scenic Illinois River trails with 100 mile, 100k, and 50k options; roughly 23,500 feet of elevation gain and rustic woodland terrain at Camp Wokanda
Jul 17, 2026 (Fri)
Challenging looped course through wooded ridges and river valley along Illinois River Bluff Trail, with significant elevation gain and summer heat.
Jul 18, 2026 (Sat)
Memorial Park, Illinois, United States
33.5-mile loop through seven western suburbs, largely on bike paths, with a steady runnable surface and point-to-point feel
Aug 22-23, 2026 (Sat-Sun)
Ozark, Illinois, United States
Looped course through Shawnee National Forest featuring 80% single-track dirt, creek crossings, rocky terrain, waterfalls, and 3200 ft elevation per loop.
Sep 5, 2026 (Sat)
Forest City, Illinois, United States
Multi-loop ultramarathon offering official finishes and awards at 50K, 100K, 150K, or 200K; progressive distances with tiered medallion and buckle rewards
Sep 11-13, 2026 (Fri-Sun)
Rockford, Illinois, United States
50K trail race with Triple Crown options up to 85K, touring wooded park trails from Red Oak picnic area in Rock Cut State Park
Sep 12, 2026 (Sat)
Beecher, Illinois, United States
50K trail course with dirt, rocks, roots, climbing, gravel, and occasional pavement; varied terrain with elevation changes and technical footing.
Sep 26, 2026 (Sat)
Dixon, Illinois, United States
7.85-mile loop from Meadows Park with singletrack, grassy meadows, and gravel; moderate elevation gain totaling 6,200 feet over the 100-mile distance
Oct 3-4, 2026 (Sat-Sun)
Sterling, Illinois, United States
Flat, fast point-to-point course along the scenic Hennepin Canal from Sterling to Colona, featuring historic locks, lift bridges, and autumn farmland views
Oct 10, 2026 (Sat)
Vernon Hills, Illinois, United States
Flat, fast crushed limestone trail winding through forests and wetlands with bridges, minimal road crossings, and occasional water from flooding
Lake County, Illinois, United States
Oct 16-17, 2026 (Fri-Sat)
Charleston, Illinois, United States
Grassy paths, dirt single track, creek crossing, and demanding hills on private land between Fox Ridge State Park and Warbler Ridge in Charleston, IL
Oct 24, 2026 (Sat)
Willow Springs, Illinois, United States
Single-track trails with elevation changes in the Palos Trail system, double out-and-back route passing historic Chicago Pile-1, playful race theme
Oct 31, 2026 (Sat)
Chicago, Illinois, United States
Multiple out-and-back segments along the Lakefront running path, mostly asphalt with some concrete, among the flattest 50k and 50-mile courses
Nov 7, 2026 (Sat)
Wooded, unpaved trails through the Palos/Sag Valley Trail Systems in the Cook County Forest Preserve
Dec 5, 2026 (Sat)
Libertyville, Illinois, United States
Picturesque course along Des Plaines River and Casey Trails with pavement, wooded paths, crushed limestone, and rolling hills; potential winter conditions
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Showing 1 - 16 of 16 events