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How Rating Points are Calculated
The Zone Rating System has its own formula for calculating rating points for games won or lost in the Age of Empires Expansion: The Rise of Rome. You begin with 1600 rating points. Your rating points will increase when you win a game and decrease when you lose a game. Here are the formulas used to calculate Age of Empires rating points for won and lost games.
Variables:
R old is your current rating.
R1 is the average rating of the winning players before the game.
R2 is the average rating of the losing players before the game.
f is a calculated point value between -1 and 1.
f = max [min [(R2-R1) / 400, 1], -1]
If you win a game:
Winning Points = max [16 * (1 + f), 1]
Through this formula, you are guaranteed at least +1 point for each game won.
If you lose a game:
Losing Points = min [16 * (-1 + f), -1]
Through this formula, you will lose at least 1 point for each game lost, unless your rating is 100 points. The rating program will never drop your rating below 100 rating points.
Formulas Used to Find Your New Rating:
Here's how to calculate your new rating for a win:
For each win, your new rating = R old + (winning points/number of winners)
Here's how to calculate your new rating for a loss:
For each loss, your new rating = R old + (losing points/number of losers)
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