Individual Calculations February 2023
 Breurkes, Richard  Total change: -4.80  Rating chartPersonal card
 Tata Steel Tienkampen 2023 Wijk aan Zee NED 2023-01-20
RcRownchangeKK*chgGame
 1750 1729 4.00 9 -0.24 20 -4.80 
  De Haan, Hans 1813 NED0.5010.12202.40 
  Timmerman, Jan 1674 NED0.501-0.0820-1.60 
  Bouma, Dick 1764 NED0.5010.05201.00 
  Bos, Bas 1687 NED0.501-0.0620-1.20 
  De Jonge, Edwin 1768 NED1.0010.552011.00 
  Stroosma, Harry 1706 NED0.501-0.0320-0.60 
  Hendriks, Jos 1744 NED0.001-0.4820-9.60 
  Boersma, David 1791 SWE0.5010.09201.80 
  Veerman, Jan 1802 NED0.001-0.4020-8.00 

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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