Add an option in which scale the rating system is

[baco]

Initial valid values are between 5-20, being the default 15, but for traditional chess tournaments the default Glicko value is 1500. It is just a matter of a factor by 100.

Could you add an option on the site for the preferred scale so a chess tournament could use the expected Glicko values representation?

[bradbeattie]

I've adjusted the live site to not divide internal scores by 100 so you can see what it's like before I commit anything.