The Big Obstacle 3K (BO3K) - July 21, 2018: Professionally timed 1.8 mile course of military-style obstacles, climbing walls, tunnels, strength and endurance challenges, inflatables and a slip-n-slide finish. BO3K 2018 offers challenging new obstacles, kids' course, and a "kinda big obstacle" course for those who aren't quite ready to take on the full BO3K. Stick around for music, food and beverages. Proceeds benefit Decatur Park District youth programs and United Way of Decatur & Mid-Illinois.


Sign up by July 1st for $5 discount and to guarantee t-shirt/tank



Kid's Heat ages 5-11. All other Heats ages 12 and up.


  • Occurred Saturday, July 21st, 2018 @ 9:00 am – 1:00 pm


Fairview Park

Decatur, IL

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