Individual Calculations January 2019
 Sellen, Ian  Total change: -10.60  Rating chartPersonal card
 Wellington Club Championship 2018 Wellington NZL 2018-09-20
RcRownchangeKK*chgGame
 2034 1981 3.50 9 -0.53 20 -10.60 
  Timergazi, Layla wm1953 NZL0.501-0.0420-0.80 
  Nyberg, Michael 1912 NZL0.501-0.1020-2.00 
  Forster, William c1849 NZL0.501-0.1820-3.60 
  Winter, Ryan 1728 NZL0.501-0.3120-6.20 
  Ker, Anthony F m2315 NZL0.5010.38207.60 
  Dive, Russell J m2297 NZL0.001-0.1320-2.60 
  Croad, Nicholas f2290 NZL0.001-0.1420-2.80 
  Nijman, Brian 2010 NZL0.5010.04200.80 
  Laking, Robert 1948 NZL0.501-0.0520-1.00 

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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