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Individual Calculations January 2011 |
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| Itkis, Hana Total change: -3.00 | |   |
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| 41st Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2010-11-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2139 | 2087 | 2.50 | 6 | -0.07 | 15 | -1.05 | |
|  Rosenberg, Evan S | | | 2213 | USA | 0.00 | 1 | -0.33 | 15 | -4.95 | |  Reichstein, Boris | f | | 2149 | USA | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Fayvinov, Zakhar | f | | 2132 | USA | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Treger, Yefim | | | 2190 | USA | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Daly, Troy | | | 2143 | USA | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Strenzwilk, Denis | | | 2005 | USA | 0.50 | 1 | -0.11 | 15 | -1.65 | |
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) | | | | Atlantic City International | Atlantic City, New Jersey | USA | 2010-12-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2157 | 2087 | 2.00 | 5 | -0.13 | 15 | -1.95 | |
| | Ivanov, Alexander | g | | 2487 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Campi, William | | | 1838 | THA | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Zenyuk, Iryna | c | wm | 2244 | USA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Kaufman, Raymond | m | | 2295 | USA | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Helfst, Matt | | | 1919 | USA | 0.50 | 1 | -0.22 | 15 | -3.30 | | | * 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) | | |
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