Profile Rating is Basically How well your stats are in the Leaderboard you are viewing.
For Example: If you are viewing Skywars Solo Insane Leaderboards then this rating is only for Skywars Solo Insane Leaderboards.
It is been calculated as the following:
(wins + kills) / (wins + kills + deaths) * 100
This will give a percentage of how well you are, the more wins and less deaths you have, the more the percentage will be.
We Then Take this Percentage and Multiply it with 5000
5000 is the max number of points you can get, which is very hard to get and requires a huge gap between Postive and negative statistics.
Note: This Rating Is different from Profile Rating, Profile rating is based on Overall Stats.