Users of Strava compete without bibs, registration fees, starting guns, doping protocols, referees, podiums or course maps.

WSJ: The Last Place Lance Armstrong Can Race

Of course, and this is a topic for another day, no one is required to own a federal registration to use a trademark, and the absence of a registration does not prove a mark is unlawful.

FORBES: Gang Green: Rules Are Tightening. Don't Say Green If You Don't Mean Green.