I'm resurrecting this post because a lot of players spoke with such conviction, and yet couldn't be more wrong.
I was promoted to Tour Pro with an average of 72 I think because I came second in a weekly tournament. I was promoted to Master 3 days later with an average of 69. I was promoted to Tour Master with a average of 67.5 after shooting low in a tournament. At this time I'd never played a Ready Go. I entered 2 RG's and was promoted to Legend with an average of 65.5 the very next day.
So the information about "how it works" is plain wrong. And if the info is how it is actually supposed to work then it is broken badly.
No one wrote that's the only way to tier up. There are multiple approaches to tiering up. The information was not wrong. It's correct for that method.
The initial question dealt with the traditional or most common way of tiering up that players have taken. That's been through playing ranked rounds. That was the context, and that's what we addressed.
To use an analogy, it's like asking for directions to go to a destination. Someone lays out a map for how to get there. Then someone else says, "That's wrong! You can get there this other way. I know. I've done it!"
Well, no, the first route is not wrong. You just happened to know another route to get there.