Individual Calculations June 2019
 Lyapa , Chisha  Total change: 15.40  Rating chartPersonal card
 Southern Zonal Open Chess Tournament - Open Section Choma ZAM 2019-05-27
 1918 1816 3.00 6 0.77 20 15.40 
  Musonda, Chola f2105 ZAM0.001-0.1620-3.20 
  Musanje, Rapheal 1928 ZAM1.0010.652013.00 
  Sumbulani, Chrispin 1901 ZAM0.001-0.3820-7.60 
  Kameya, Robson 2097 ZAM0.001-0.1620-3.20 
  Mkandawire, Samuel Mpunga 1591 ZAM1.0010.22204.40 
  Situmbaeto, Pumulo 1886 ZAM1.0010.602012.00 

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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