rulefan
Tour Winner
That was done by sampling many thousands of shots made by amateur scratch and bogey golfers.I found this comment interesting
Scratch Golfer
Is one who can play to a Course Handicapâ„¢ of zero on any and all rated golf courses.
He (she) can hit tee shots an average of 250 (210) yards and reach a 470 (400)-yard hole in two shots.
Bogey Golfer
Is one with a Course Handicap of 20 (24). He (she) can hit tee shots an average of 200 (150) yards and can reach a 370 (280)-yard hole in two shots.
The USGA recently re-sampled and found the scratch drive had gone by 4-5 yards but didn't change the rating parameters because it was pretty insignificant in the scheme of things.
I think the average pro drive is about 285 yards