Individual Calculations September 2017
 Maroroa, Sue Y  Total change: -33.00  Rating chartPersonal card
 104th British Championship Llandudno ENG 2017-07-29
 2066 2116 3.50 9 -1.65 20 -33.00 
  Williams, Simon K g2442 ENG0.001-0.1320-2.60 
  Ahluwalia, Amardip 1995 ENG0.001-0.6620-13.20 
  Garnett, John S 2005 ENG1.0010.35207.00 
  Anilkumar, Anantha P (jnr) 1932 ENG0.501-0.2420-4.80 
  Abrahams, Daniel 2162 CAN0.5010.06201.20 
  Fathallah, Joe 1919 WLS0.501-0.2520-5.00 
  Humphreys, Jerry G 2041 ENG0.001-0.6020-12.00 
  Cocks, Elliot 2036 ENG1.0010.39207.80 
  Byron, Alan M 2064 ENG0.001-0.5720-11.40 

Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change)


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