Individual Calculations February 2020
 Grant, Chevaughn  Total change: -29.60  Rating chartPersonal card
 IA FM John Powell Memorial Open 2020 FIDE Open Section Kingston, Jamaica JAM 2020-01-16
 1658 1574 0.50 5 -1.48 20 -29.60 
  Wilkinson, Ian 1837 JAM0.001-0.1820-3.60 
  Stephenson, John 1627 JAM0.5010.07201.40 
  Lyn, Christopher 1815 JAM0.001-0.2020-4.00 
  Dakin, Errol 1352 JAM0.001-0.7820-15.60 
  Tracey, Shaun M 1657 ENG0.001-0.3920-7.80 

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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