Individual Calculations May 2019
 Mahia, Gustavo  Total change: -7.70  Rating chartPersonal card
 2019 World Senior Team Chess Championships open 50plus Rhodes GRE 2019-04-15
 2338 2367 3.50 8 -0.77 10 -7.70 
  Olafsson, Helgi g2506 ISL0.001-0.3110-3.10 
  Lagerborg, Krister 2102 SWE1.0010.18101.80 
  Yrjola, Jouni g2327 FIN0.501-0.0610-0.60 
  Wallner, Joachim f2271 AUT0.001-0.6310-6.30 
  Ross, David m2312 CAN1.0010.42104.20 
  Boensch, Uwe g2525 GER0.001-0.2910-2.90 
  Burchardt, Brigitte wm2136 GER1.0010.21102.10 
  Benjamin, Joel g2523 USA0.001-0.2910-2.90 

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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