https://www.facebook.com/events/ [login to see] 13873/
Getting the basics out of the way now:
Will you get a t-shirt? YES
Is it free? YES
Can inexperienced people come? YES
Will there be free beer? Probably not
Its supposed to be nice out and there's a good crossover between the Spartan/Tough Mudder/etc. community and the veteran community. These are a great way to network while getting some well needed exercise before beach season.