[wilf]

Are you looking at the average speed for the whole race?

Dont forget that includes the slow first lap from a standing start, this means you get a really slow laptime for the first lap of the full circuit but it wouldnt make any difference to the woodland circuit as you're not getting the benefit of the start/finish straight and going right almost as your off the line.

To check for real you'd need a lap time from each and know the lap distance of each, then you can get the real lap 'speed'

just an idea ?? ??