Here's a breakdown of the obstacles on the course.
The mud/water obstacles were the most refreshing as it was 97 degrees outside. My favorite obstacles were the rope nets and the rope climb. I felt like I did the best at the over, under, through walls, the eight foot walls, and the barbed wire crawls. The most difficult for me were the fireman's pull and the bucket carry. What made the fireman's pull so difficult was that the block of cement would get caught on rocks and roots as you were dragging it. I found that holding the chain with both hands at the lower back and leaning as far forward as possible made pulling it uphill much easier. The uphill barbed wire crawl was the most painful obstacle. The water flowing down washed the mud away so it was basically like crawling on rocks. My knees and elbows got ripped to shreds although I didn't notice until after the race. My under armor shirt also got half a dozen tears in it from the barbed wire and I got a couple good gashes on my back. The fact that I was getting gunned down by a fire hose from the side also made this obstacle especially difficult and painful.This was by far the funnest race I've ever done.
Check out the video at http://spartanrace.tv/?v=midway