as a course rater, i've read this thread with some interest.
usga course rating guidelines consider a 'scratch' golfer to, on average, carry the ball 230 yards on the tee ball, with a 20 yard roll. the 'bogey' golfer will, on average, carry the ball 180 yards with a 20 yard roll. those are averages, with several factors influencing the actual distances, e.g. topography, firmness of fairways, etc.
judging from the distances mentioned throughout this thread, i'm wondering if the usga guidelines need to be changed, or is this further evidence that we tend to overestimate how far we hit the ball?
ed