Individual Calculations February 2023
 Tang, Tracy  Total change: 33.60  Rating chartPersonal card
 2023 New Zealand Major Open Wellington NZL 2023-01-02
RcRownchangeKK*chgGame
 1519 1378 1.00 5 -0.78 40 -31.20 
  Jackson, L. Ross 1812 NZL0.001-0.0640-2.40 
  Gold, Hamish 1627 NZL0.001-0.1940-7.60 
  Zhao, Oliver 1264 NZL1.0010.344013.60 
  Wells, Clinton A. 1680 NZL0.001-0.1540-6.00 
  Xing, Zeqi 1211 AUS0.001-0.7240-28.80 

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)
 
 2023 New Zealand Junior and Age Group Championships Wellington NZL 2023-01-03
RcRownchangeKK*chgGame
 1527 1378 0.50 2 -0.22 40 -8.80 
  Suggate, Romero 1781 NZL0.001-0.0840-3.20 
  Sun, Taoran Ethan 1273 NZL0.501-0.1440-5.60 

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)
 
 Bob Wade Challengers B Auckland NZL 2023-01-14
RcRownchangeKK*chgGame
 1630 1378 4.00 9 1.84 40 73.60 
  Fuatai, Fuatai 1942 NZL1.0010.984039.20 
  Benson, James 1604 NZL0.5010.294011.60 
  Charamova, Jennya 1947 NZL0.5010.484019.20 
  Sun, Wanyao Sarah 1454 NZL1.0010.604024.00 
  McDonald, Duncan 1469 NZL0.5010.12404.80 
  Xu, Luna Yuexiu 1443 NZL0.001-0.4140-16.40 
  Wang, Daniel 1792 NZL0.001-0.0740-2.80 
  Zhang, Charles 1511 NZL0.5010.18407.20 
  Chang, Yolanda 1507 NZL0.001-0.3340-13.20 

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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