Individual Calculations January 2015
 Zepeda, Rafael  Total change: 61.20  Rating chartPersonal card
 Open San Salvador 2014 San Salvador ESA 2014-12-05
RcRownchangeKK*chgGame
 2206 2025 3.50 7 1.53 40 61.20 
  Sanchez Alvarez, Roberto Carlos f2390 CUB0.001-0.1040-4.00 
  Morera Campos, Yanori Maria 1735 CRC1.0010.16406.40 
  Llaudy Pupo, Lisandra wm2217 CUB0.5010.254010.00 
  Madrigal, Mariano m2194 NCA1.0010.724028.80 
  Arribas Robaina, Maritza wg2308 CUB1.0010.844033.60 
  Marrero Lopez, Yaniet wg2283 CUB0.001-0.1840-7.20 
  Kaufman, Raymond m2315 USA0.001-0.1640-6.40 

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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