Each time you register a match result, your play level is updated. The better you perform, the more stars you earn. Most players have 4 stars or fewer, while top club players can reach 6 stars, and world-class players reach up to 10 stars.
Expected score
Your level increases if you perform better than expected. For example, if you are a 3-star player and you win against another 3-star player, your level wll go up and your opponent's level will drop. When you lose a match, your level may still go up. For instance, if you have 3 stars and narrowly lose to a 4-star player, your level will increase while your opponent's level will decrease. On the other hand, if you are a 3-star player and win by a small margin against a 2-star player, your level will decrease, and your opponent's level will increase. In the latter case, you'll need to win by a significant margin to maintain or raise your level.
Team and individual level
Individual results and team results are tracked separately.
So your team's results do not affect your individual level, and your individual results do not impact your team's level.
New players
Your level does not change when you play against a new player with an unreliable level, unless you are a new player yourself.
Level corrections
Occasionally, your level may change, even if you don't play a match:
- A player of your league plays against a player of another league. The results of the match may be used to adjust the average of all league players.
- The national average level has changed. For example: When many new players join, the average level decreases. All player ratings are adjusted to ensure that the national average level remains the same.
For nerds...
We have developed advanced statistical models to quickly estimate play levels based on match results, using proprietary functions that operate on normal distributions. Play levels are transformed to a normal distribution with a mean of 0. A play level is mapped to stars by regularly calculating the standard deviation, allowing us to calculate the Z-factor for each player. A Z-factor of 0 corresponds to a 4-star rating, while a Z-factor of 0.75 earns a 5-star rating, a Z-factor of 1.5 equates to a 6-star rating, and so on.
This approach ensures that only about 1% of the player population achieves 7 or more stars, and a mere 4 in a million reach the pinnacle with 10 or more stars, representing world-class players.