Great pictures!!!
Tsunami's fate wasn't due to air racing so much as John Sandberg having what we call in the aviation industry, get-home-itus. The aircraft was "tired" after air racing and had a number of issues. Skip Holm got her partly home but had to put down due to bad weather. He specifically told JR not to come out and fly the airplane because of her condition but he wouldn't listen. A flap system had been installed (not originally designed into the aircraft) on Tsunami so John could fly her, otherwise it was too much airplane for him. When he attempted to land for a fuel stop the flaps deployed asymmetrically resulting in it rolling over at low altitude and crashing. Had John been patient Tsunami might still be airworthy today rather than going through an extensive and slow rebuild process. So air racing wasn't the direct result, the aircraft could've received maintenance or in the hands of a more capable pilot like Skip Holm could've gotten her home given a little more time.