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Individual Calculations January 2011 |
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| Kaufman, Raymond Total change: -2.85 | |   |
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| 41st Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2010-11-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2345 | 2295 | 2.50 | 5 | 0.33 | 15 | 4.95 | |
|  Bodek, Michael H | | | 2190 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Kudrin, Sergey | g | | 2543 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | |  Gershenov, Ben | | | 2044 | USA | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Hungaski, Robert A | m | | 2451 | USA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Krush, Irina | m | wg | 2495 | USA | 0.00 | 1 | -0.24 | 15 | -3.60 | |
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) | | | | Atlantic City International | Atlantic City, New Jersey | USA | 2010-12-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2199 | 2295 | 2.50 | 5 | -0.52 | 15 | -7.80 | |
| | Campi, William | | | 1895 * | THA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Ivanov, Alexander | g | | 2534 | USA | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Mandelkern, Jeremy | | | 2074 | USA | 0.50 | 1 | -0.28 | 15 | -4.20 | | | Itkis, Hana | | wf | 2087 | USA | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Mandizha, Farai | f | | 2406 | ZIM | 0.00 | 1 | -0.35 | 15 | -5.25 | | | * 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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