The short answer
Academy guidance explains that BAR stores both skill and uncertainty, then uses those values to calculate game rating and leaderboard rating.
Winning tends to raise skill, while playing more reduces uncertainty.
Why this matters
- Players often misunderstand ratings because they see one number and assume it tells the whole story.
- Uncertainty matters because the system is estimating how reliable the current skill value is.
- That is why new accounts and less-tested accounts behave differently from well-established ones.
What a player should actually do
- Treat early numbers as provisional, not destiny.
- Understand that more games usually make the system more confident.
- Read game rating as a balancing tool, not as a complete statement of identity.
Common mistake
The common mistake is assuming the system only stores one skill number. The uncertainty value is doing real work too.
Advertisement