Individual Calculations July 2009
 Marichal, Ariel  Total change: 11.40  Rating chartPersonal card
 I Torneo Internacional Ciudad de Porlamar Porlamar VEN 2009-03-25
RcRownchangeKK*chgGame
 2247 2217 3.50 6 0.76 15 11.40 
  Perez Garcia, Luis Orlando 1867 CUB1.0010.11151.65 
  Iturrizaga Bonelli, Eduardo g2528 VEN0.001-0.1415-2.10 
  Prasca Sosa, Rafael Felipe m2415 VEN0.5010.26153.90 
  Boada Gomez, Wiston Esmir 2236 VEN0.5010.03150.45 
  Pulvett, Daniel 2250 VEN1.0010.55158.25 
  Torres Romero, Jose Daniel 2184 VEN0.501-0.0515-0.75 

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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