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3. Your win-loss record (ties count as a half a win.)
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How exactly are Expected Wins calculated?
They are calculated fractionally for each opponent, then added up.
If the between your rating and your opponent’s rating is ''d'',
you are expected to win 1÷(1+''e''<sup>0.0031879·''d''</sup>) games against them.
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The rating program first calculates a number to estimate how many games you will probably win. This is known as your “Expected Wins.” The rating program uses your intial rating and the ratings of all your opponents to perform this calculation. It then subtracts your Expected Wins from your actual number of wins to get the difference. It then multiplies the difference by your K value (see below) to calculate your rating change. If you won fewer games than what was expected, then the difference will be negative meaning you lose rating points. If you won more games than expected, then you will gain rating points.