This report is the best known (by us at least) publicly-available source for all U.S. commercial casino revenue on a monthly basis. It gathers together monthly data from every available jurisdiction. It uses publicly-released data from state regulatory bodies.
National Commercial Casino Gaming: Monthly Revenues
Combined Win Figure for (Nearly) Every U.S. Commercial Casino and Racino Jurisdiction
Updated with October data!
Here are the customer Nevada gaming reports covering the October 2013 numbers:
Nevada Gaming Statistics: The Last Six Months
Recent Trends for Casino Revenues, May 2013 to October 2013
Nevada Gaming Statistics: October Comparison
Statewide, Las Vegas Strip, Downtown Las Vegas, Boulder Strip, and Washoe County figures for the month of October, 2004-2013
The Ohio monthly report has been updated:
Ohio Casinos: Monthly Revenues
Table and Slot Machine Operating Statistics for all casinos and racinos
Here is the Maryland report, now with October numbers:
Maryland Casinos: Monthly Revenues
Monthly and Year-to-Date Total Revenue, Gross Terminal Revenue, Win/Unit/Day, Table Data, and Market Share
This is the most comprehensive collection of Maryland casino data available online.