I'm not 100%, but today there was a "re-enacted" race that flew without incident until the pair of P-51's came into land. They were landing 36 and the one came in too close to the other and hit him in the back while both aircraft were on the runway. I'm not sure which was which or what pilot it was, but one flipped over. But that's part I can back up. The word of mouth was that one of the pilots did die(assuming the one in the plane that flipped upside down). I couldn't find anything right away as I got home, so I can't confirm all the details of this, but there were many people, including the line-personal that got word of it and the stories were all the same.