Individual Calculations May 2017
 Mattarella, Pietro  Total change: -17.40  Rating chartPersonal card
 49 CIS - Promozione Sicilia Aci Castello ITA 2017-03-24
RcRownchangeKK*chgGame
 1614 1763 2.50 5 -0.87 20 -17.40 
  Musso, Alessio 1407 ITA0.501-0.3920-7.80 
  Azzopardi, Alfred 1557 ITA1.0010.24204.80 
  Cervellione, Piernicola 1539 ITA0.501-0.2820-5.60 
  Lo Grande, Gaetano 1706 ITA0.501-0.0820-1.60 
  Filetti, Massimiliano 1863 ITA0.001-0.3620-7.20 

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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