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CiF Rating Info
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Example for the calculation of the rating by Thomas Amelang
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Example 1
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Rating White: 2257,14
(more than 25 finished games)
Rating Black: 2019,32
(more than 25 finished games)
Rating difference: 237,82
Basic points (GP): Victory = +10 Points
Draw = - 0,25 Points
Null = -10 Points
Calculation:
Black: GP + 3% of the rating difference = rating-points
(as minor rating)
White: GP - 3% of the rating difference = rating points
(as higher rating)
Result 1-0: White +10 - 7,13 = + 2,87 --> + 2,87 Points
Black -10 + 7,13 = - 2,87 --> - 2,87 Points
Result ½-½: White - 0,25 - 7,13 = - 7,38 --> - 7,38 Points
Black - 0,25 + 7,13 = + 6,88 --> + 6,88 Points
Result 0-1: White -10 - 7,13 = - 17,13 --> -17,13 Points
Black +10 + 7,13 = +17,13 --> +17,13 Points
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Example 2
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Rating
White: 2257,14 (more than 25 finished games)
Rating
Black: 1810,00 (more than 25 finished games)
Rating difference: 447,14
Basic points (GP): Victory = +10 Points
Draw = - 0,25 Points
Loss = -10 Points
Calculation: Black:GP + 3% of the rating difference =
rating-points (as minor rating)
White:GP - 3% of the rating difference = rating
points (as higher rating)
Result 1-0: White +10 -13,41 = - 3,41 --> + 1,00
Points !! (for victory)
Black -10 +13,41 = + 3,41 --> - 1,00 Points !! (for
loss)
Result ½-½: White - 0,25 -13,41 = -13,66 -->
-13,66 Points
Black - 0,25 +13,41 = +13,16 --> +13,16 Points
Result 0-1: White -10 -13,41 = -23,41 --> -23,41
Points
Black 10 +13,41 = +23,41 --> +23,41 Points
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Example 2
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Rating
White 2257,14 (more than 25 finished games)
Rating
Black: 1810,00 (less than 25 finished games)
Rating difference: 447,14
Basic points (GPW): White (as more than 25
finished games)
Victory = +10 Points
Draw = - 0,25 Points
Loss = -10 Points
Basic points (GPS): Black (less than 25
finished games)
Victory = +15 Points
Draw = - 0,25 Points
Loss = -12 Points
Calculation Black:GP + 10% of the rating difference =
rating-points (as minor rating)
White:GP - 3% of the rating difference = rating
points (as higher rating)
Result 1-0: White +10 -13,41 = - 3,41 --> + 1,00
Points !! (for victory)
Black -12 +44,71 = +34,71 --> - 1,00 Points !! (for
lossl)
Result ½-½: White - 0,25 -13,41 = -13,66 -->
-13,66 Points
Black - 0,25 +44,71 = +44,46 --> +44,46 Points
Result 0-1: White -10 -13,41 = -23,41 --> -23,41
Points
Black +15 +44,71 = +59,71 --> +59,71 Points
For players with less than
25 games there will be a recalculation and the rating
will be aligned with the actual rating. This is
important for conquerors of a peak
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