Rapid: Individual Calculations October 2017
 Roberson, Peter T  Total change: -11.60  Rating chartPersonal card
 Golders Green FIDE Rapid Chess Open September 2017 London ENG 2017-09-09
 2071 2381 4.50 6 -0.58 20 -11.60 
  Rocco, Federico 2015 ENG0.501-0.4020-8.00 
  Basman, Michael J m2182 ENG0.501-0.2620-5.20 
  Nettleton, Charlie B 1981  * ENG1.0010.08201.60 
  Penna, Tommaso 1981  * ITA1.0010.08201.60 
  Merriman, John 2238 ENG0.501-0.1920-3.80 
  Grattage, Matthew 2026 ENG1.0010.11202.20 
 * 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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