Steep Drop In Number Of Out-Of-State Fans More Bad News...
Out-of-state attendance for the '15 U.S. Grand Prix at austin's Circuit of the Americas "plunged from earlier years," as just over 50,000 non-Texans "attended the main Sunday...
http://www.sportsbusinessdaily.com/Daily/Issues/2016/01/12/Events-and-Attractions/F1-Race.aspx