MARKDMK:
Does anyone here knows how to find out the number of ranked games played as a legend? Thanks for any responses.
No way for a saturated average, i.e. more than 500 rounds counting.
Are you sure that you aren't saturated yet? Have you ever experienced inexplicably high moves in the average? Did the average ever drop from rounds above the number?
Before saturation, a quick shot may be possible by one extreme result. Note the average
in the game client(!), play nine holes (not on Par3 or Par5!) with at least
5 shots more than
usual, note the gross score and the new average.
BTW: 5 shots less works fine, too :)
(2*score - average) / average-change is an educated guess at the number of rounds.
A better estimate is possible with some maths in a spreadsheet:
The average variation is caused by scores and by the number of rounds, the 100th round having more immediate effect (x/100) than the 400th (x/400). Thus, a series of scores will reveal where you are.
Note the gross scores and the average before and after a few rounds (not on Par3 or Par5) and fit them together in a serial average calculation, starting from different round numbers. A few voluntary big deviations will help to make the result quite precise after - say - 10 rounds.
Edit: Don't forget to double any 9 hole scores.