Individual Calculations February 2023
 Timmerman, Jan  Total change: -19.80  Rating chartPersonal card
 Tata Steel Tienkampen 2023 Wijk aan Zee NED 2023-01-20
RcRownchangeKK*chgGame
 1756 1674 2.50 9 -0.99 20 -19.80 
  Hendriks, Jos 1744 NED1.0010.602012.00 
  Breurkes, Richard 1729 NED0.5010.08201.60 
  Veerman, Jan 1802 NED0.001-0.3320-6.60 
  De Haan, Hans 1813 NED0.001-0.3120-6.20 
  Boersma, David 1791 SWE0.001-0.3420-6.80 
  Bouma, Dick 1764 NED1.0010.622012.40 
  Bos, Bas 1687 NED0.001-0.4820-9.60 
  De Jonge, Edwin 1768 NED0.001-0.3720-7.40 
  Stroosma, Harry 1706 NED0.001-0.4620-9.20 

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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