Individual Calculations January 2009
 Mahmoudi, Nad Ali  Total change: -33.75  Rating chartPersonal card
 Aria Chess School Round Robin Tournement Karaj IRI 2008-09-23
RcRownchangeKK*chgGame
 2040 1941 2.00 9 -1.35 25 -33.75 
  Mohammadi, Arad 1899 IRI0.501-0.0625-1.50 
  Eftekhari, Amir 2061 IRI0.001-0.3425-8.50 
  Sherafati, M 2074 IRI0.5010.18254.50 
  Ettehadi, H 2242 IRI0.001-0.1525-3.75 
  Cheraghi, Amin 2086 IRI0.5010.19254.75 
  Kaberi, Javad 2142 IRI0.001-0.2425-6.00 
  Kolyaie, Hasan 2058 IRI0.001-0.3425-8.50 
  Sadeghi, S 2091 IRI0.001-0.3025-7.50 
  Asadollahi, Mohammadreza 1706 IRI0.501-0.2925-7.25 

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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