The pilot made an approach for landing at an airport with a substantial tail wind. According to airport personnel, the wind was about 170 at 25 knots creating a tailwind component for landing. During the landing sequence, the airplane bounced and touched down further than normal. The airplane subsequently overran the departure end of the runway onto rough terrain, and nosed over. The airplane sustained substantial damage to the wings and fuselage. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.