Individual Calculations May 2011
 Duffy, Seamus  Total change: -4.50  Rating chartPersonal card
 Armstrong Cup 2011 Dublin IRL 2010-09-24
RcRownchangeKK*chgGame
 2088 2022 5.00 8 1.71 15 25.65 
  Nolan, John 2134 IRL0.001-0.3515-5.25 
  Delaney, Killian 2040 IRL0.5010.03150.45 
  McMorrow, John 2048 IRL1.0010.54158.10 
  Dennehy, Tony 2131 IRL0.5010.15152.25 
  Benson, Oisin P. 2043 IRL1.0010.53157.95 
  Moran, Stephen 1987 IRL0.501-0.0515-0.75 
  Spirek, Adam 2108 CZE1.0010.62159.30 
  McPhillips, Karl 2209 IRL0.5010.24153.60 

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)
 
 Irish National Chess Club Championship 2011 Dublin IRL 2011-02-12
RcRownchangeKK*chgGame
 2020 2022 0.00 4 -2.01 15 -30.15 
  Sodoma, Jan 2348 CZE0.001-0.1315-1.95 
  Polimac, Darko 1928 IRL0.001-0.6315-9.45 
  Mendelson, Andrew 2127 RSA0.001-0.3615-5.40 
  Kalam, Abul 1675 IRL0.001-0.8915-13.35 

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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