Chicago Monster Dash
This is one of the most fun races around! Participants are encouraged to wear a Halloween costume (as funny and creative as possible) while running. And people really commit... you'll see a lot of people running the half marathon all decked out in their costumes!
Apart from race winners, there is obviously a costume competition!
Did you know that this race is part of a series of runs? If you like this race you may want to run one of the following Monster Race Series Chicago events.