Individual Calculations February 2020
 Stephenson, John  Total change: -27.20  Rating chartPersonal card
 National Junior Championships (Abs) 2020 Kingston, Jamaica JAM 2020-01-02
RcRownchangeKK*chgGame
 1668 1627 3.50 7 0.36 40 14.40 
  Lyn, Christopher 1815 JAM0.5010.24409.60 
  Glaves, Raheem f2027  * JAM0.001-0.0840-3.20 
  McDonald, Angelus-Seren 1666 JAM1.0010.554022.00 
  Walters, Romaine 1250 JAM1.0010.09403.60 
  McKennis, Darren 1689 JAM0.001-0.4140-16.40 
  Watts, Justin 1506 JAM1.0010.344013.60 
  Morgan, Tajae 1721 JAM0.001-0.3740-14.80 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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)
 
 IA FM John Powell Memorial Open 2020 FIDE Open Section Kingston, Jamaica JAM 2020-01-16
RcRownchangeKK*chgGame
 1622 1627 2.00 6 -1.04 40 -41.60 
  McDermott, Peter John 1859 JAM0.5010.294011.60 
  Curriah, Malik c2027  * JAM0.001-0.0840-3.20 
  Grant, Chevaughn 1574 JAM0.501-0.0740-2.80 
  Walters, Romaine 1250 JAM0.001-0.9140-36.40 
  Brown, Raehanna wc1672 JAM0.001-0.4440-17.60 
  Dakin, Errol 1352 JAM1.0010.17406.80 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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