Individual Calculations October 2021
 Purcell, John  Total change: 0.00  Rating chartPersonal card
 The Irish over50 and over65 championship 2021 Dublin IRL 2021-09-24
RcRownchangeRpKK*chgGame
 1515 0 0.00 3 0.00 715   0.00 
  Lynch, Peter J. 1661 IRL0.0010.00 0.00 
  Reynolds, David W. 1397 IRL0.0010.00 0.00 
  Maher, John 1486 IRL0.0010.00 0.00 

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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