Individual Calculations July 2013
 Machin Rivera, Mark  Total change: 0.90  Rating chartPersonal card
 Puerto Rico Championship 2013 Bayamon PUR 2013-05-24
RcRownchangeKK*chgGame
 2149 2329 6.50 9 0.06 15 0.90 
  Otero Diaz, Octavio 1931 PUR0.501-0.4215-6.30 
  Rosario Salas, Jonatan 1980 PUR1.0010.11151.65 
  Montanez Nazario, Roberto c2134 PUR1.0010.25153.75 
  Berrios Echevarria, Gabriel f2200 PUR1.0010.33154.95 
  Almedina Ortiz, Edgardo J f2276 PUR0.501-0.0715-1.05 
  Colon Melendez, Edgar c2196 PUR0.001-0.6815-10.20 
  Vazquez Reyes, Raul f2258 PUR0.501-0.1015-1.50 
  Zilleruelo Irizarry, Diego 2075 PUR1.0010.19152.85 
  Montalvo Rosario, Alejandro m2293 PUR1.0010.45156.75 

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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