Individual Calculations February 2023
 Roggeveen, Pieter  Total change: -10.20  Rating chartPersonal card
 Tata Steel Tienkampen 2023 Wijk aan Zee NED 2023-01-20
RcRownchangeKK*chgGame
 2257 2212 3.00 8 -0.51 20 -10.20 
  Duchene, Rene 2176 NED0.501-0.0520-1.00 
  Visser, Henk-Jan c2216 NED0.5010.01200.20 
  Willemze, Thomas m2355 NED0.001-0.3120-6.20 
  Alboredo, Julia fwm2232 BRA0.5010.03200.60 
  Wessendorf, Thomas, Dr. f2252 GER0.5010.06201.20 
  Culbeaux Tello, Oscar Abraham f2193 MEX0.501-0.0320-0.60 
  Bekker, Stefan f2288 NED0.5010.10202.00 
  Peelen, Piet m2344 NED0.001-0.3220-6.40 

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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