Ultramarathons in Illinois
17 upcoming Ultramarathon races in Illinois for 2026 and beyond — with dates, locations, and registration links.
- Hobo Trail Runs 10k-25k-50kFri, Sep 11, 2026 · Rockford, IL85K60K10K25K50K
- CHICAGO TRAIL RUNNING FESTIVALSat, Sep 12, 2026 · Beecher, IL5K9.7K19.3K29.0K50K
- HMFA’s Tour de Heartland FundraiserSat, Sep 12, 2026 · Greenview, IL19.3K27.4K72.4K
- Capital City CenturySat, Sep 19, 2026 · Sherman, IL100 Miles106.2K64.4K20 Miles
- Richmond RampageSun, Sep 20, 2026 · Richmond, IL50 Miles50K
- Golden Harvest Half Marathon & 5k/10k - Greater ChicagoSun, Sep 27, 2026 · Elk Grove Village, IL50 Miles1 Mile5K10KHalf Marathon
- Sweet Ride | Bike • Run • WalkSat, Oct 3, 2026 · Willow Springs, IL5K40K65K
- Site M: RedactedSat, Oct 3, 2026 · Chandlerville, IL50 Miles48.3K
- Spooky Sprint - Greater ChicagoSun, Oct 25, 2026 · Shorewood, IL50 Miles1 Mile5K10KHalf Marathon
- The Forge Trail Run FestivalSat, Nov 14, 2026 · Lemont, IL10KHalf Marathon30K59.9K
- Turkey Trails - Greater ChicagoSat, Nov 28, 2026 · Shorewood, IL50 Miles1 Mile5K10KHalf Marathon
- Candy Cane Course- Greater ChicagoSat, Dec 12, 2026 · Elk Grove Village, IL50 Miles1 Mile5K10K15K
- Time to Paddy 5K/10K & Lucky 13.1 - Greater ChicagoSat, Feb 27, 2027 · Greater Chicago, IL50 Miles1 Mile5K10KHalf Marathon
- DoNot Stop Half Marathon/5K/10K - Greater ChicagoSat, Apr 3, 2027 · Greater Chicago, IL50 Miles1 Mile5K10KHalf Marathon
- White Squirrel RoubaixSat, May 15, 2027 · Olney, IL100K50K20K
- Heatwave Half Marathon/5K/10K - Greater ChicagoSun, Aug 1, 2027 · Greater Chicago, IL50 Miles1 Mile5K10KHalf Marathon
- Highlander Assault Obstacle RaceSat, Aug 7, 2027 · Pingree Grove, IL50K15K5K3K