Illinois
Illinois Obstacle Race Calendar 2026-2027
Monthly updates for Illinois
Get new running races (and updates) in your inbox every month.
Explore the best obstacle runs in Illinois for 2026-2027! Our updated list features 7 exciting races across the region. Find your next race in Illinois below and join the running community at these great events!
May 2027
Nighttime obstacle race in Pingree Grove, IL with multiple 5K heats and a 30K unlimited laps option, illuminated obstacles, live entertainment, and onsite parking.
An obstacle course event at Byron Motosports Park on May 22, 2027 offering 10K and 5K waves, Special Forces, Ruck division and a kids course, produced by a nonprofit honoring service members.
June 2027
Muddy Dash Chicago at Megacross is a family friendly mud run with obstacles, mud pits, slides, costume fun, and registration options that include a give one program.
August 2027
A Scottish Highlander themed obstacle race in Pingree Grove on August 7, 2027 offering 50K, 15K, 5K, family 3K, a torch lit night run and a haunted 5K.
Test your teamwork at Richardson Adventure Farm with 5 km, 15 km, or multi-lap Infinity courses featuring iconic obstacles and varied terrain.
Monthly updates for Illinois
Get new running races (and updates) in your inbox every month.
September 2027
A multi-day endurance event at Decker Farm offering 36, 12 and 4 hour formats that mix farm chores, boot camp, trail running and strongman challenges.
Obstacle-course event at The Cliffs Off-Road Park in Marseilles IL offering 3+ and 6+ mile courses, ruck divisions, a multi-lap challenge, and a kids course.