Individual Calculations May 2017
 Bolla, Vittorio  Total change: 2.00  Rating chartPersonal card
 OP 15 Infrasettimanale ARS Roma ITA 2017-03-09
RcRownchangeKK*chgGame
 1713 1643 3.00 7 0.10 20 2.00 
  Primavera, Federico 1917 ITA0.001-0.1720-3.40 
  Ricci, Giulio 1748 ITA0.001-0.3620-7.20 
  Raccah, Ascer 1669 ITA1.0010.542010.80 
  Pellegrini, Ennio Paolo 1533 ITA1.0010.35207.00 
  Macchini, Bruno 1856 ITA0.001-0.2320-4.60 
  Bruni, Andrea 1558 ITA0.001-0.6220-12.40 
  Casavecchia, Alberto 1709 ITA1.0010.592011.80 

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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