Sorry to intervene, but I'm a fan of PRE-War air racers...when small groups of guys built nasty machines from spruce and tubing. I really don't see the point of racing vintage WWII fighters with engines designed in the 1930's-1940's. I also am concerned about how the pilots are qualified to fly such machines, how well their planes are inspected, and putting such stresses on these old airframes.
A friend and his wife were spectators when the big crash happened at Reno (about 8 years ago?) and narrowly escaped with their lives. I've personally seen a fatal USAF Thunderbird crash, and have been in the area when other fatal airshow crashes happened. I was in 5th grade when I saw the T-bird crash, and remember it well. Maybe that's why I'm not a fan of airshows. I like to go see them parked on the ramp and doing fly-overs. I well remember seeing an F-104 doing a minimum radius 360 deg. turn during an airshow at Edwards when I was 15, and I really enjoyed seeing the white Bardahl P-51 taxi by and then do a VERY high speed low pass at Sand Point NAS, when I was 17. Mira Slovak was the pilot.
You know what Chuck Yeager said about old pilots and bold pilots! IMO, Getting off the ground in an airplane is serious business, and I don't think it's wise to push your luck anymore than you absolutely have to. Yes, the airplanes are cool, but damned dangerous. I'd prefer to see them do solo trips through a speed trap just to see which one is fastest, call it good, and award the trophies.

Steve