Individual Calculations December 2021
 Boudry, William  Total change: 12.60  Rating chartPersonal card
 Open Leuven 2021 Leuven BEL 2021-10-29
RcRownchangeKK*chgGame
 1952 2078 4.00 6 0.16 20 3.20 
  Malfliet, Alexander 1678  * BEL1.0010.08201.60 
  Deserrano, Gertjan 1811 BEL1.0010.18203.60 
  Boucquet, Emile c2196 BEL0.001-0.3420-6.80 
  Van Noten, Stijn 1842 BEL1.0010.20204.00 
  Becx, Cesar f2150 NED0.001-0.4020-8.00 
  Godde, Matthias 2034 BEL1.0010.44208.80 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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)
 
 Dutch Team Competition 2021-2022 - Meesterklasse Round 3 various NED 2021-11-06
RcRownchangeKK*chgGame
 2455 2082 1.00 1 0.90 20 18.00 
  Meng, Roger f2455 NED1.0010.902018.00 

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)
 
 Belgian Youth Chess Championship 2021 -20 BG Blankenberge BEL 2021-11-11
RcRownchangeKK*chgGame
 2088 2082 4.00 7 0.57 20 11.40 
  Laurent, Yann 1765 BEL1.0010.13202.60 
  Swennen, Fleur 1819 BEL1.0010.18203.60 
  Verheyen, Olivier 2166 BEL1.0010.622012.40 
  Maerevoet, Sim f2356 BEL0.001-0.1720-3.40 
  Pirard, Natan 2215 BEL0.001-0.3220-6.40 
  De Bock, Thijs 1894 BEL1.0010.26205.20 
  Beukema, Jasper f2398 BEL0.001-0.1320-2.60 

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)
 
 Belgian Interclubs 2021-2022 Round 2 Various Places BEL 2021-11-21
RcRownchangeKK*chgGame
 1969 2082 0.00 1 -0.65 20 -13.00 
  Vandamme, Florian 1969 BEL0.001-0.6520-13.00 

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)
 
 Dutch Team Competition 2021-2022 - Klasse 2 Round 4 various NED 2021-11-27
RcRownchangeKK*chgGame
 2189 2082 0.00 1 -0.35 20 -7.00 
  Van Gool, Henk 2189 NED0.001-0.3520-7.00 

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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