Ranking System

Introduction
When you upload a team in Cloudball, the server will automatically rate your team against the other available teams. If you win more than you lose, your rating will increase! However, winning against a team with higher rating than your team will yeild a bigger increase than winning against a weaker team. The opposite also applies, if you lose against a weaker team, you suffer a bigger rating loss than if you lose against a stronger team.

The game also has a statistic called Uncertanity. Uncertanity is a measure of how uncertain the system is about your rating, for each game you play, your uncertanity is decreased.

Specifics
The game uses the Trueskill Ranking System to calculate your Rating. Internally, the system has two parameters, TrueSkill and Uncertanity. The ranking is calculated as:

$$Rating = TrueSkill-3 \cdot Uncertanity$$

FAQ

 * How do i increase my Rating?
 * You can increase your rating by making a stronger team. Sometimes the key is to be more versatile! See Tactics for some tips.


 * Why does my Rating decrease when i upload a new team?
 * When you upload a new team, your Uncertanity is reset to 8.33, this means that while your teams rating is stablizing, it will show up as lower than before. If you want to check how your team is doing, you can check how your TrueSkill is changing.


 * Can i see my TrueSkill and Uncertanity?
 * Yes, mouseover the questionmark next to Rating at the My Team page.


 * How does the server pick matches?
 * The primary goal of the server is that all teams should have a uncertanity below 0.5. Once all teams have that, teams are picked at random, with probability propotional to their uncertanity. The server first picks a home team, and then picks an away whose rating is close to the home team (+- 10 Rating, if possible).