Individual Calculations July 2012
 Santana, Orlando  Total change: -3.15  Rating chartPersonal card
 Puerto Rico Championship 2012 Caguas PUR 2012-05-25
RcRownchangeKK*chgGame
 2052 2163 5.50 9 -0.21 15 -3.15 
  Otero, Octavio 1885 PUR1.0010.17152.55 
  Izuzquiza Gonzalez, Javier 1981 PUR0.501-0.2415-3.60 
  Montanez Nazario, Roberto 2115 PUR0.001-0.5715-8.55 
  Guzman Freire, Julio 1837 PUR0.001-0.8715-13.05 
  Matos Santoni, Gamalier 1948 PUR1.0010.23153.45 
  Sosa Trani, Luis f2116 PUR1.0010.43156.45 
  Guzman Ortiz, Carlos M 2125 PUR1.0010.45156.75 
  Colon Melendez, Edgar 2182 PUR1.0010.53157.95 
  Machin Rivera, Mark c2278 PUR0.001-0.3415-5.10 

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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