Individual Calculations May 2012
 Zapata, Alonso  Total change: -1.30  Rating chartPersonal card
 Torneo de Guaynabo 2012 Abierta Guaynabo PUR 2012-02-24
RcRownchangeKK*chgGame
 2201 2479 4.00 5 -0.13 10 -1.30 
  Montanez Nazario, Roberto 2117 PUR1.0010.10101.00 
  Berrios Echevarria, Gabriel f2243 PUR1.0010.20102.00 
  Machin Rivera, Mark c2259 PUR0.501-0.2810-2.80 
  Guzman Ortiz, Carlos M 2086 PUR1.0010.08100.80 
  Vazquez Reyes, Raul f2302 PUR0.501-0.2310-2.30 

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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