Individual Calculations July 2009
 Zhang, Ziyang  Total change: 1.30  Rating chartPersonal card
 Thailand Open Chess Championship 2009 Pattaya THA 2009-04-01
RcRownchangeKK*chgGame
 2228 2419 6.50 9 -0.04 10 -0.40 
  Pettersen, Joar Gullestad 2069 NOR1.0010.11101.10 
  Pornariyasombat, Atippat 2165 THA1.0010.19101.90 
  Aung, Kyaw Moe 2137 MYA0.501-0.3410-3.40 
  Li, Shilong g2557 CHN0.001-0.3110-3.10 
  Zhou, Guijue 2183 CHN0.001-0.8010-8.00 
  Akharaboollasezs, Akharin 2069 THA1.0010.11101.10 
  Johnsen, Sverre 2172 NOR1.0010.19101.90 
  Mok, Tze-Meng f2303 MAS1.0010.34103.40 
  Sorensen, Torben 2401 MLT1.0010.47104.70 

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)
 
 8th Asian Continental Individual Open Championship Subic Bay Freeport PHI 2009-05-13
RcRownchangeKK*chgGame
 2450 2419 5.00 11 -0.05 10 -0.50 
  Li, Shilong g2557 CHN0.001-0.3110-3.10 
  Kazhgaleyev, Murtas g2626 KAZ0.5010.27102.70 
  Nguyen, Ngoc Truong Son g2588 VIE0.001-0.2810-2.80 
  Garma, Edgardo 2421 PHI1.0010.50105.00 
  Bancod, Ronald m2356 PHI0.001-0.5910-5.90 
  Causo, Deniel 2367 PHI1.0010.43104.30 
  Wahono, Awam f2391 INA0.501-0.0410-0.40 
  Harika, Dronavalli mwg2474 IND0.001-0.4210-4.20 
  Alhuwar, Jasem f2293 UAE1.0010.33103.30 
  Bui, Vinh g2522 VIE0.001-0.3610-3.60 
  Pascua, Haridas 2359 PHI1.0010.42104.20 

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)
 
 2nd Subic International Open Subic Bay Freeport PHI 2009-05-25
RcRownchangeKK*chgGame
 2432 2419 4.50 9 0.22 10 2.20 
  Tejas, Ravichandran 2177 IND0.501-0.3010-3.00 
  Morazo, John Ranel 2133 PHI1.0010.16101.60 
  Negi, Parimarjan g2592 IND0.5010.23102.30 
  Nguyen, Thanh Son m2448 VIE0.5010.04100.40 
  Laylo, Darwin g2509 PHI0.5010.12101.20 
  Nguyen, Anh Dung g2518 VIE0.5010.14101.40 
  Tania, Sachdev mwg2423 IND1.0010.51105.10 
  Ganguly, Surya Shekhar g2625 IND0.001-0.2410-2.40 
  Gonzales, Jayson g2465 PHI0.001-0.4410-4.40 

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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