Individual Calculations September 2013
 Itkin, David  Total change: 6.45  Rating chartPersonal card
 2013 NAYCC U18 Toronto CAN 2013-08-14
 2171 2021 3.00 8 0.43 15 6.45 
  Chandra, Fm Akshat f2328 USA1.0010.861512.90 
  Vibbert, Sean 2317 USA1.0010.851512.75 
  Preotu, Razvan 2277 CAN0.5010.31154.65 
  Qin, Fm Ziyi 2286 CAN0.001-0.1815-2.70 
  Knox, Christopher 2074 CAN0.001-0.4315-6.45 
  Chiku-Ratte, Olivier Kenta 2127 CAN0.001-0.3615-5.40 
  Zhang, Eric Ruiyang 2023 USA0.001-0.5015-7.50 
  Sprumont, Oscar 1935 CAN0.501-0.1215-1.80 

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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