More than 3,000 participated in the Merrell Down & Dirty national obstacle course and mud run Sunday at Riverside Park in Hartford.
Contestants had a choice between a 5k or 10k course strewn with obstacles, including rock walls, rope climbs, nets, and a mud pit. Children as young as 4 were able to into the fun, too, with shorter runs.
Click here to view a courant.com photo gallery from the event.