1. How do compete for ranking?  
2. What are the conditions for a ranked game?  
3. What do the different colors before someones name mean?  
4. What kind of ranking system is used?  
5. How does the ranking calculation work?  
6. Can you give me an example calculation?  
7. What is the grade point ranking?  
8. How does the Allround ranking work?  
9 Why did I get a warning not to play my friends in a ranked lobby?  
10 Why did I loose my ranking points (at start of month)  
11 Will I get more ranking points for exceeding the point limit?  
12. Stranger Rule: Why can't I play a certain opponent?  
13. How does the 2 vs. 2 clan war ranking work?  
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5. How does the ranking calculation work?

First, all scores are normalised to 100, so it doesn't matter you play til 10 or til 15, you can receive the same amount of points.

        =   ( -1 / +1 )   *       ( 0 - 1 )      *     ( 0 - 1 )     *    ( 0 - 50 )
Ranking = win-lose-factor * diff-opponent-factor * diff-ranking-factor * diff-score-factor
		
A) win-lose-factor: winner gets +1 , loser gets -1
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If you win you gain points, if you lose, you lose points.
WLF = player = winner ? +1 : -1
		
B) diff-opponent-factor ( 0 - 1 ):
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If you play against the same person to often, you can get less points playing against this player.
DOF = game-count < 10 ? 1 otherwise ( 1 - min-max( 0 , opponentCount / games1 - 0.1 , 0.5 ) * 2 );

C) diff-ranking-factor: ( 0 - 1 ):
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Win from higher ranked players -> more points
Win from lower ranked players -> less points
Lose from higher ranked players -> less points
Lose from lower ranked playerS -> more points

MAX_DIFF = 250 ( = verschil in ranking > 250 ? DRF precies 0 of precies 1)

DRF = (MAX_DIFF - max-min( -MAX_DIFF , rW - rL , +MAX_DIFF ) ) / (2 * MAX_DIFF) 
	
D) diff-score-factor:
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Get more points when you wipe your but with your opponent.

DSF = max-min( 0 , abs( score1 - score2 ) , 100 );