Customers of Youbet.com will be transferred to the account-wagering operations of Twinspires.com as of Nov. 16, according to the owner of both account-wagering platforms, Churchill Downs Inc.\r\nChurchill began notifying Youbet customers about the migration this week in informational fliers sent via the mail. The fliers told customers that their account balances and awards points will all be transferred as of Nov. 16 to Twinspires.com, and that the Youbet.com site will redirect the customers to the Twinspires.com site as of that date as well. The usernames and passwords of Youbet customers will also remain the same at Twinspires.com, the fliers said.\r\nChurchill purchased Youbet.com in an acquisition that closed earlier this year. The company launched twinspires.com in 2007, shortly after acquiring three other account-wagering platforms. The customers of those platforms were also migrated to Twinspires.com.\r\nWith the Youbet acquisition, Churchill became the largest account-wagering operator in the country, surpassing the market share of Television Games Network. The company has spent more than $200 million over the past four years acquiring account-wagering companies and launching the Twinspires.com site.