Individual Calculations May 2011
 Montalvo Rosario, Alejandro  Total change: 9.15  Rating chartPersonal card
 Jose De Diego Open 2011 Aguadilla PUR 2011-04-15
 2063 2239 3.50 4 0.61 15 9.15 
  Jose Polanco, Kenia wc1971 DOM1.0010.17152.55 
  Izuzquiza Gonzalez, Javier 2004 PUR1.0010.21153.15 
  Rosado Anazagasti, Rafael 2050 PUR1.0010.25153.75 
  Vazquez Reyes, Raul c2227 PUR0.501-0.0215-0.30 

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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