Any members of Washington Sports Club?

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I'm interested in starting a "biggest loser" type group. WSC has a group like this, but it's over $200 each! I don't see any reason 2-4 teams of 2-4 people couldn't do this without paying. You'd ave teammates to encourage you (and meet at the gym if you want) and a competitive inspiration in the opponents.

Anyone know folks who might like to try something like this?