Individual Calculations September 2012
 Rosen, Eric S  Total change: -19.05  Rating chartPersonal card
 2012 Washington International Rockville, Maryland USA 2012-07-28
 2216 2328 4.50 9 -1.27 15 -19.05 
  Liang, Awonder f1928  * USA0.501-0.4215-6.30 
  Zenyuk, Iryna cwm2242 USA0.001-0.6215-9.30 
  Ryba, Andrew 2162 USA0.501-0.2215-3.30 
  Rozman, Levy 2200 USA0.501-0.1715-2.55 
  Zimmer, Ralph P f2202 USA1.0010.33154.95 
  Barnett, Alex 2243 USA1.0010.38155.70 
  Benjamin, Joel g2559 USA0.001-0.2115-3.15 
  Foisor, Mihaela V wm2220 ROU1.0010.35155.25 
  Wang, Kevin 2186 USA0.001-0.6915-10.35 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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