Here is the answer to the question...
Basically, listed below is the tier progression. Remember that custom courses, par 3s, and par 5s don't count for average. Also, your average resets with each tier advancement. Finally, the number of rounds indicated is the number of rounds at that tier and not number of total rounds played.
- When you have played at least 5 ranked rounds - and your average score is equal to or lower than 100.00 you go from Hack to Amateur.
- When you have played at least 10 ranked rounds - and your average score is equal to or lower than 80.00 you go from Amateur to Pro.
- When you have played at least 20 ranked rounds - and your average score is equal to or lower than 72.00 you go from Pro to Tour Pro
- When you have played at least 25 ranked rounds - and your average score is equal to or lower than 67.00 you go from Tour Pro to Master
- When you have played at least 40 ranked rounds - and your average score is equal to or lower than 63.00 you go from Master to Tour Master
- When you have played at least 50 ranked rounds - and your average score is equal to or lower than 61.00 you go from Tour Master to Legend
- When you have played at least 500 ranked rounds - and your average score is equal to or lower than 60.00 you go from Legend to Tour Legend
- When you have played at least 200 ranked rounds - and your average score is equal to or lower than 59.00 you go from Tour Legend to Champion
- When you have played 200 ranked rounds, you saturate at Champion. Tour Champion is by invitation only.