Individual Calculations December 2012
 Colchero Truniger, Alejandro  Total change: 13.35  Rating chartPersonal card
 Campeonato Regional por Equipos Murcia 2012–Segunda Division Murcia ESP 2012-10-06
 1680 1724 2.00 2 0.89 15 13.35 
  Molina Molina, Sergio 1787 ESP1.0010.59158.85 
  Guerrero Mendez, Luis 1573 ESP1.0010.30154.50 

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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