There are three stories about where the first demolition derby was held. Islip Raceway (Long Island, NY), Hales Corner Raceway (Hales Corner, WI), and an unknown town in Ohio. The first and only story with creditable proof is that Larry Mendelson, a 28 year stock car racer noticed that the most cheering and excitement happened when cars crashed. He held the first demolition derby in 1958 at Islip Raceway. Another story is that Hales Corner Raceway had held a demo years previous to Islip. According to legend, 'Crazy Jim' Groh had a few too many cars on his dealership lot. So he got a few people to drive them as a promotion. The only other proof to back this story are the Happy Days episodes 64, 64, 66 'Fonzie loves Pinkie ...