Individual Calculations September 2012
 Machin Rivera, Mark  Total change: 0.15  Rating chartPersonal card
 Torneo Abierto de Caba 2012 Open Bayamon PUR 2012-08-17
RcRownchangeKK*chgGame
 2221 2323 2.50 4 0.01 15 0.15 
  Jimenez Acosta, Jorge 2027 PUR1.0010.15152.25 
  Zapata, Alonso g2481 COL0.5010.21153.15 
  Almedina Ortiz, Edgardo J f2247 PUR0.501-0.1015-1.50 
  Torres Santiago, Jonathan 2128 PUR0.501-0.2515-3.75 

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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