Individual Calculations October 2017
 Vermaak, Jacobus  Total change: -23.20  Rating chartPersonal card
 2017 Etienne Lewis Tshwane Chess Trails (u16 Boys) Pretoria RSA 2017-08-31
RcRownchangeKK*chgGame
 1336 1411 3.00 6 -0.58 40 -23.20 
  Pelser, Casper-Hugo 1290 RSA1.0010.344013.60 
  Marais, Dawid Jacobus 1351 RSA1.0010.424016.80 
  Dykema, Dirkho 1451 RSA0.5010.06402.40 
  Cruywagen, Armand 1371 RSA0.001-0.5640-22.40 
  Wohlfahrt, Daniel 1162 RSA0.501-0.3140-12.40 
  Claassen, Jean-Daniel 1390 RSA0.001-0.5340-21.20 

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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