Individual Calculations July 2015
 Rosen, Eric S  Total change: -9.30  Rating chartPersonal card
 2015 National Open Las Vegas, Nevada USA 2015-06-19
 2247 2423 2.50 5 -0.93 10 -9.30 
  West, Vanessa A 2085 USA0.501-0.3810-3.80 
  Bjorksten, Lennart 2107 USA0.001-0.8710-8.70 
  Wang, Annie wm2023  * USA1.0010.08100.80 
  Chirila, Ioan Cristian g2527 ROU0.5010.14101.40 
  Jayaram, Ashwin m2492 IND0.5010.10101.00 
 * 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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