The pilot stated that he was performing touch-and-go landings, and had performed several with no problem. During his last touch-and-go landing, he said the left wheel came up off the runway, and as it again contacted the runway the airplane veered hard to the left. He said he tried to maintain control of the airplane, but while doing so, the right wheel rim dug into the asphalt further aggravating the ground loop. The airplane's right wing then impacted the runway surface, and its right main landing gear collapsed.