The mud run is now being held in the spring and the fall, and the next one is coming up this March 30th. registration opened up today. If you have never done this before I highly recommend it. It is a very well put together event and great for all skill levels. Basically its a 10K run and 75% of it is in the mud, with lots of obstacles to break up the running. They are limiting it to 4000 people this year so sign up quick.