Individual Calculations April 2021
 Ben Ari, Yannay  Total change: -3.00  Rating chartPersonal card
 Elitzur GM Winter 2020 B Stage 1 Petah Tikva ISR 2020-12-13
RcRownchangeKK*chgGame
 2453 2398 1.00 6 -1.57 10 -15.70 
  Solomon, Asif f2361 ISR0.001-0.5510-5.50 
  Bernadskiy, Vitaliy g2619 UKR0.001-0.2210-2.20 
  Dvoirys, Semen I. g2480 RUS0.001-0.3910-3.90 
  Musyuk, Lior f2285 ISR0.501-0.1510-1.50 
  Sivuk, Vitaly g2541 UKR0.001-0.3110-3.10 
  Peng, Li Min m2433 UKR0.5010.05100.50 

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)
 
 Israeli Open Championship Finals 2020 Haifa ISR 2021-03-07
RcRownchangeKK*chgGame
 2423 2403 4.50 9 0.24 10 2.40 
  Lahav, Michal wm2216 ISR0.501-0.2410-2.40 
  Iliaguev, Nisim f2332 ISR0.501-0.1010-1.00 
  Efroimski, Marsel wg2357 ISR0.501-0.0610-0.60 
  Dvoirys, Semen I. g2483 RUS0.5010.11101.10 
  Postny, Evgeny g2605 ISR0.5010.26102.60 
  Rechlis, Gad g2513 ISR0.5010.15101.50 
  Steinberg, Nitzan g2553 ISR0.001-0.3010-3.00 
  Kupervaser, Erez f2371 ISR0.501-0.0410-0.40 
  Haimovich, Tal m2375 ISR1.0010.46104.60 

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)
 
 Israel Youth Championship Finals 2021 U18 - Israel Eshel Memorial Hakfar Hayarok ISR 2021-03-19
RcRownchangeKK*chgGame
 2219 2403 7.50 9 1.03 10 10.30 
  Kadria, Shay 2086 ISR1.0010.13101.30 
  Cohen Revivo, Shoham f2171 ISR1.0010.21102.10 
  Milikow, Yoav f2302 ISR1.0010.36103.60 
  Tzidkiya, Yeshaayahu f2380 ISR0.501-0.0310-0.30 
  Globus, Or f2401 ISR1.0010.50105.00 
  Ehrlich, Roy 2004 ISR1.0010.08100.80 
  Gorodetzky, Matan f2253 ISR0.501-0.2010-2.00 
  Zemach, Roee f2292 ISR1.0010.35103.50 
  Katkov, Michelle wf2078 ISR0.501-0.3710-3.70 

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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