Individual Calculations January 2018
 Sellen, Ian  Total change: 9.80  Rating chartPersonal card
 Wellington Club Championship 2017 Wellington NZL 2017-09-14
RcRownchangeKK*chgGame
 2068 1971 4.00 9 0.49 20 9.80 
  Dive, Russell m2294 NZL0.001-0.1320-2.60 
  Croad, Nicholas f2247 NZL0.001-0.1720-3.40 
  Timergazi, Layla wm1989 NZL0.5010.03200.60 
  Nijman, Brian 1996 NZL1.0010.532010.60 
  Perry, Roger 2020 NZL0.001-0.4320-8.60 
  Nyberg, Michael 1881 NZL1.0010.38207.60 
  Forster, William c1959 NZL1.0010.48209.60 
  Jackson, Ross 1912 NZL0.501-0.0820-1.60 
  Ker, Antony m2314 NZL0.001-0.1220-2.40 

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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