Ultramarathons in Illinois
16 upcoming Ultramarathon races in Illinois for 2026 and beyond — with dates, locations, and registration links.
- The Forge Trail Run FestivalSat, Nov 14, 2026 · Lemont, IL10KHalf Marathon30K59.9K
- Dirty Petersburg Gravel RideSun, Nov 15, 2026 · Petersburg, IL50 Miles
- 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
- Tour de TrailsSat, Dec 19, 2026 · Rockford, IL5K9.7K14.5K19.3K48.3K
- Kennekuk Road Runners - Members Only Fat AssSat, Feb 20, 2027 · Danville, IL45.7K
- Time to Paddy 5K/10K & Lucky 13.1 - Greater ChicagoSat, Feb 27, 2027 · Rolling Meadows, IL50 Miles1 Mile5K10KHalf Marathon
- DoNot Stop Half Marathon/5K/10K - Greater ChicagoSat, Apr 3, 2027 · Wheaton, IL50 Miles1 Mile5K10KHalf Marathon
- White Squirrel RoubaixSat, May 15, 2027 · Olney, IL100K50K20K
- Red Cedar Trail Races at Giant City State ParkSat, May 22, 2027 · Makanda, IL5K21.9KMarathon50 Miles
- Heatwave Half Marathon/5K/10K - Greater ChicagoSun, Aug 1, 2027 · Elk Grove Village, IL50 Miles1 Mile5K10KHalf Marathon
- Highlander Assault Obstacle RaceSat, Aug 7, 2027 · Pingree Grove, IL50K15K5K3K
- Summer Sizzler - Greater ChicagoSun, Aug 22, 2027 · Wheaton, IL50 Miles1 Mile5K10K15K
- The Ultimate SUCKFri, Sep 3, 2027 · Cuba, IL50 Miles40.2K10 Miles
- HMFA’s Tour de Heartland FundraiserSat, Sep 11, 2027 · Greenview, IL19.3K27.4K72.4K
- Golden Harvest Half Marathon & 5K/10K - Greater ChicagoSat, Sep 18, 2027 · Greater Chicago, IL50 Miles1 Mile5K10KHalf Marathon