61 for legend, long way yet.
anyway, average is going down only, because you already made the required # of ranqued rounds for your tier, don't remember if it is 40 or 60. now, only the good scores will be applied to your average. If you hit a 75 for 18 holes, it wont go up, but if you made a 57 it will go down.
You are right, average is probably not real, but is the only way to prevent players camping in a specific tier for sandbagging purposes
try dividing distance for 1.3 and you will have a good distance control for tournament greens. (1.3 for TM's greens, 1.35 for legend's greens)