just for you norm - open the images in a separate window to see them in full size
the above shows your rounds in order with all the blitz etc removed ("sort" will make this easy)
you'll notice that the average here doesn't correspond your average as given by wgt
you have passed the magic number of rounds where your high scores are dropped from the calculation
so your rounds needs to be sorted in order of lowest to highest
as below
note at round 25 we hit your current average
so it appears that for tour pro tier your best 25 rounds are used to calculate the average
so a score of 78 will not affect your current average, but a score of 77 will bring your average down
took about 10 mins in excel by the way
and if you want the average by course, tournament, back 9, front 9 etc
use a spreadsheet
if you haven't got excel then get - OpenOffice - this is free (from Oracle or sun microsystems i think)