Individual Calculations January 2010
 Collyer, Curt D  Total change: 18.75  Rating chartPersonal card
 27th Annual Sands Regency - Western States Open Reno, Nevada USA 2009-10-23
RcRownchangeKK*chgGame
 2319 2294 3.00 5 0.61 15 9.15 
  Ibragimov, Ildar g2577 USA0.001-0.1615-2.40 
  Troff, Kayden W 2174 USA0.501-0.1615-2.40 
  Fuentes, Romulo C 2139 USA0.501-0.2115-3.15 
  Treger, Yefim 2198 USA1.0010.37155.55 
  Gurevich, Dmitry g2506 USA1.0010.771511.55 

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)
 
 London Chess Classic Open London ENG 2009-12-08
RcRownchangeKK*chgGame
 2210 2294 6.00 9 0.64 15 9.60 
  Sagues, Vincent 1948 FRA0.501-0.3915-5.85 
  Seymour, Timothy P 2041 ENG1.0010.19152.85 
  Ivens, Birger 2052 GER1.0010.20153.00 
  Houska, Jovanka mwg2391 ENG0.001-0.3715-5.55 
  Warman, Simon M 2153 ENG1.0010.31154.65 
  Summerscale, Aaron P g2449 ENG0.5010.21153.15 
  Barle, Janez m2420 SLO0.001-0.3315-4.95 
  Har-Even, Abir 2045 ISR1.0010.19152.85 
  Slavin, Alexei f2392 RUS1.0010.63159.45 

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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