I thank everyone who took the time to answer my question. Including reminding me that the word "saturation" is what I was looking for.
200 rounds for saturation after becoming a Tour Legend, and it's also 200 rounds for saturation after becoming a Champion. I'm embarrassed to not having just guessed that. That's my aging brain.
I'm taking a break by playing Par 3 rounds for now. Piling tee shots on the pins, trying for two shot to give me Hole in Ones, #'s 24 & 25. Haven't found the right touch or let's be real, the right luck so far.
There's a golf joke about skill verses luck, that goes something like this. Golfer plays 17 holes of bad shots, then on the 18th holes makes one real, real good shot. He doesn't think that maybe that real, real good shot was LUCK!
Have fun on WGT in 2018. A year that looks like it will disappoint us because a couple of things that we loved getting added to WGT, will be missing this year.