Let's talk about the brands that are the bedrock of OCR. As the sport has grown over the last 3-4 years, one thing has stood out: there are a few brands that are the biggest and best - the Chili's or Chipotle of the sport; you always know (within reason) what you're going to get when you show up. You're not going to be (too) surprised with the event, as there reputation of quality precedes them.
All of these events are big on fun, and in descending order of difficulty. WIPEOUTRUN is the easiest, all the way down to Spartan Race Sprint as the hardest "beginner-friendly" races. If you're looking for a good reason to get muddy and experience an actual mud run/obstacle course race with guys and gals, our best suggestion is to start with Warrior Dash. Yeah, we know you're the adventurous type - but recommend getting at least one OCR under your belt before you move up to Spartan Race Sprint; even the short distance is pretty darn difficult with mandatory obstacle completion (the only one on this list that requires it)!