Individual Calculations January 2010
 Roebers, Jan  Total change: 2.85  Rating chartPersonal card
 Klasse 3D Round 2-4 - Dutch Team Competition Various NED 2009-10-31
RcRownchangeKK*chgGame
 2106 2222 1.50 2 0.19 15 2.85 
  Leeflang, Hans 2160 NED1.0010.41156.15 
  Oud, Niek 2052 NED0.501-0.2215-3.30 

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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