Tim McGraw & the Dancehall Doctors are racking up some strong numbers on their summer Out Loud amphitheater tour, and more dates have been added for arenas heading into the fall.

Tim McGraw & the Dancehall Doctors are racking up some strong numbers on their summer Out Loud amphitheater tour, and more dates have been added for arenas heading into the fall.

On Saturday (July 17), McGraw drew an over-capacity crowd of more than 22,000 to the Gorge amphitheater in George, Wash., grossing more than $1 million, according to his agent, Rod Essig at Creative Artists Agency.

For the shed run, McGraw has been averaging about 14,000 per night in attendance and about $600,000-$700,000 per night in gross, Essig says.

McGraw wraps the outdoor leg Aug. 1 at Starwood Amphitheatre near Nashville, and begins the indoor leg Aug. 19 at the Centroplex in Baton Rouge, La.

Sept. 30 and Oct. 1 dates at the Resch Center in Green Bay, Wis., will be taped for a NBC television special. The Warren Brothers and Big & Rich support on all dates.