Rapid: Individual Calculations December 2017
 Ramirez Madrid, Daniel Alberto  Total change: -10.80  Rating chartPersonal card
 I Torneo Unidos por el Ajedrez Sub14 2017 Alajuela CRC 2017-11-11
 1249 1276 0.00 1 -0.54 20 -10.80 
  Medina Mayorga, David Josue 1249 CRC0.001-0.5420-10.80 

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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