Virgin Gaming is running an online tournament for the Playstation 3 version of NBA 2K11, with a Leaderboard Challenge beginning November 5th and running through January 15th. The top 256 ranked players in the Virgin Gaming Lobby will be automatically entered in the tournament beginning January 17th, with a chance to share in $50,000 worth of cash and prizes. See
here for more details and to register for the tournament.