Join the O'Fallon Chamber of Commerce on July 4th for the 42nd Annual Firecracker 5K, 10K, and 1 Mile Fun Run! This race includes a commemorative t-shirt, Finisher Medal, Business Expo, and access to the world-famous Runners Only Area! 5K & 10K finishers will receive live text results, personalized results emails and free video of their finish line moment!