Obstacle races and mud runs have become all the rage over the past few years. The Tough Mudder organization alone saw over 2 million people participate at their events last year. The Spartan Race is another version of the obstacle race that is geared for intensely competitive people who want to be physically pushed to their limit. You will also find any number of other versions of an obstacle race or mud run in smaller communities around the country. If your participants want to race or just want the accomplishment of finishing, everyone has a smile on their dirty faces at the finish line of these events. Here are some considerations for adding one to your calendar of events.