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Individual Calculations September 2011 |
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| Li, Ruifeng Total change: -28.80 | |   |
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| 2011 DCC FIDE Open VII | Richardson, Texas | USA | 2011-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2103 | 1877 | 0.50 | 2 | 0.03 | 30 | 0.90 | |
|  Chiang, Sarah | | wc | 1982 | USA | 0.50 | 1 | 0.14 | 30 | 4.20 | | | Safin, Artur K | | | 2224 | USA | 0.00 | 1 | -0.11 | 30 | -3.30 | |
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) | | | | DCC FIDE Open VIII | Richardson, Texas | USA | 2011-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1881 | 1877 | 0.00 | 2 | -0.99 | 30 | -29.70 | |
|  Xiong, Jeffery | f | | 1979 | USA | 0.00 | 1 | -0.36 | 30 | -10.80 | | | Chiang, Jonathan | | | 1782 | USA | 0.00 | 1 | -0.63 | 30 | -18.90 | |
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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