Illinois Ultramarathons
37 upcoming ultras across Illinois, updated nightly. Want radius search and maps? Open these in the Race Finder.
When to race: ultras in Illinois
Illinois has 37 upcoming ultras over the next 12 months. September is the busiest month for them, with 11. Most are around Dixon, Willow Springs, Charleston. The next one is The Ultimate SUCK on September 4 in Cuba.
- Sep 202611 races
- Oct 20268 races
- Nov 20263 races
- Dec 20262 races
- Jan 20271 race
- Mar 20274 races
- Apr 20273 races
- May 20271 race
- Jun 20271 race
- Jul 20271 race
- Aug 20272 races
September 2026
- Fri 9/4The Ultimate SUCKCuba, IL · 50 Mile · 25 Miles · 10 Mile · from $109 · register ↗
- Fri 9/4Warrior CrucibleLoves Park, IL · 30 Miles · 5K · from $40 · register ↗
- Fri 9/11Hobo Trail Runs 10k-25k-50kRockford, IL · 85K · 60K · 10K · 25K · 50K · Trail · from $30 · register ↗
- Sat 9/124sta HikeIllinois City, IL · 4 Hour · register ↗
- Sat 9/12CHICAGO TRAIL RUNNING FESTIVALBeecher, IL · 5K · 6 Miles · 12 Miles · 18 Miles · 50K · Trail · from $35 · registration closed · register ↗
- Sat 9/12Timely NonsenseChicago, IL · 12 Hour · 6 Hour · 3 Hour · register ↗
- Sat 9/19Capital City CenturySherman, IL · 100 Mile · 66 Miles · 40 Miles · 20 Miles · from $55 · register ↗
- Sun 9/20Richmond RampageRichmond, IL · 50 Mile · 50K · from $20 · register ↗
- Tue 9/222026 10th Annual Gold Star 500Springfield, IL · 200 Miles · 100 Mile · 90 Miles · 104 Miles · 108 Miles · from $60 · register ↗
- Sat 9/26Half Day at the LakeEvanston, IL · 12 Hour · 6 Hour · register ↗
- Sat 9/26Hindsight Ultra Trail RunsDixon, IL · 100 Mile · 100K · 50K · 25K · 8 Miles · Trail · register ↗
October 2026
- Sat 10/3Site M: RedactedChandlerville, IL · 50 Mile · 30 Miles · from $50 · register ↗
- Sat 10/3Sweet Ride | Bike • Run • WalkWillow Springs, IL · 5K · 40K · 65K · from $30 · register ↗
- Sat 10/3The Hennepin HundredSterling, IL · 100 Mile · 50 Mile · 50K · register ↗
- Sat 10/10Arrowhead Endurance RunJohnston City, IL · 24 Hour · 12 Hour · 6 Hour · 3 Hour · register ↗
- Sat 10/10Des Plaines River Trail RacesLake County, IL · 50 Mile · 50K · Marathon · Half Marathon · Trail · register ↗
- Sat 10/10Farmdale Trail RunEast Peoria, IL · 100 Mile · 50 Mile · 30 Miles · Half Marathon · 10K · Trail · register ↗
- Fri 10/16Shake Your Trail Feather Trail RunCharleston, IL · 100K · 5K · Trail · register ↗
- Sat 10/24Fancy Nonsense 25k/50kWillow Springs, IL · 50K · 25K · 5 Miles · register ↗
November 2026
- Sat 11/14McNotagain Fall Trail RunsPekin, IL · 50 Mile · 30 Miles · 10 Mile · 3.5 Miles · Trail · register ↗
- Sat 11/14The Forge Trail Run FestivalLemont, IL · 10K · Half Marathon · 30K · 37.2 Miles · Trail · from $45 · register ↗
- Sat 11/14Tunnel Hill 100Vienna, IL · 100 Mile · 100K · 50 Mile · Marathon · register ↗
December 2026
- Sat 12/5Da Deer Run RunHudson, IL · 8K · 4K · 3 Hour · from $15 · register ↗
- Sun 12/13Lokalz 50 KMPeoria, IL · 50K · register ↗
January 2027
- Sat 1/9Frozen GnomeCrystal Lake, IL · 50K · 10K · register ↗
March 2027
- Sat 3/20American BottomsColumbia, IL · 113 Miles · 56 Miles · register ↗
- Sat 3/27Clinton Lake UltraDeWitt, IL · 30 Miles · 10 Mile · register ↗
- Sat 3/27Schon Park 3/6/9 Endurance RunsGlen Carbon, IL · 3 Hour · 6 Hour · 9 Hour · from $60 · register ↗
- Sat 3/27SkunkApe 806/524/314 Trail RaceDixon, IL · 806 Hour · 524 Hour · 314 Hour · Trail · register ↗
April 2027
- Thu 4/8Potawatomi Trail RunsPekin, IL · 200 Miles · Trail · register ↗
- Sat 4/17Earth Day 50k/15 Mile/5 MileCrystal Lake, IL · 50K · 15 Miles · 5 Miles · register ↗
- Sat 4/24Childish NonsensePalatine, IL · 50 Mile · 50K · 25K · 5.5 Miles · register ↗
May 2027
- Sat 5/15White Squirrel RoubaixOlney, IL · 100K · 50K · 20K · from $30 · registration closed · register ↗
June 2027
- Sat 6/5Elsa Chicken Plucker Backyard UltraCharleston, IL · Timed · register ↗
July 2027
- Fri 7/9CMAR Trail Races: Cry Me A RiverChillicothe, IL · 100 Mile · 50 Mile · 50K · Half Marathon · 4 Miles · Trail · register ↗
August 2027
- Sat 8/7Highlander Assault Obstacle RacePingree Grove, IL · 50K · 15K · 5K · 3K · from $45 · register ↗
- Sat 8/21Shawnee Hills Trail RacesOzark, IL · 100 Mile · 100K · 50K · Half Marathon · Trail · register ↗
Planning a race
- The adventure listrim to rim, the big rounds, and routes worth planning a year around
- Getting inhow entry works for the races that sell out or ballot
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