21st Annual Marine Mud Run. If you have yet to take the Marine Mud Run Challenge, you're missing out on the cleanest fun you'll ever have with a 5K race! As you will see from the pictures on our web site, it's a pretty muddy affair. Many folks ask, just how tough is the course? We reply, it's as hard or easy as you want it to be! We have semi-pro runners down to the neighbor next door that has never entered a 5k race. Individual and 5 Person Team races and the Pollywog Jog, a shorter version for children 12 yrs. and under. One thing is for sure if you run this race the Marines will see to it that you finish it. Part of the Marines creed is to never leave another Marine behind. And for this event we will never leave a runner behind!