Individual Calculations September 2009
 Van Overdam, Jan  Total change: 73.25  Rating chartPersonal card
 3e Leiden Chess Tournament Leiden NED 2009-07-10
RcRownchangeKK*chgGame
 2145 1964 4.50 8 2.37 25 59.25 
  Ducarmon, Quinten 2201 NED0.001-0.2025-5.00 
  Boyarchenko, Marie 2028 LUX1.0010.592514.75 
  Van Der Raaf, Erik 2175 NED1.0010.772519.25 
  Padmini, Rout wm2243 IND0.001-0.1625-4.00 
  Pietrow, Andrzej 2113 NED0.5010.20255.00 
  Uthra, P. wf2063 IND1.0010.642516.00 
  Schroer, Marcel 2128 NED1.0010.722518.00 
  Heemskerk, Wim f2210 NED0.001-0.1925-4.75 

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)
 
 Jubilee Open Master 2009 Zurich SUI 2009-08-09
RcRownchangeKK*chgGame
 2171 1964 2.50 8 0.56 25 14.00 
  Ketterer, Christian 2270 GER0.001-0.1425-3.50 
  Myers, Goeffrey 2158 SUI0.5010.25256.25 
  Allor, Chukwuka 2151 NGR0.5010.24256.00 
  Serban, Vlad 2173 LUX0.001-0.2325-5.75 
  Astengo, Marcello 2117 ITA0.5010.20255.00 
  Schuh, Dirk f2304 GER0.001-0.1225-3.00 
  Wuethrich, Lorenz 2128 SUI0.5010.22255.50 
  Zeiler, Klaus 2068 GER0.5010.14253.50 

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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