At this point in time, I had finished running my first ever Spartan Sprint in Atlanta and had run a Tough Mudder the previous year, so I felt like I could do an honest comparison. My friend had only ever done Tough Mudder, but had done several of them.
I told him "You have to do a Spartan. The two aren't even remotely similar."
And so it was that I convinced him to meet me halfway between Tennessee and Michigan to run the Indiana Spartan Sprint.