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Individual Calculations September 2009 |
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| Markzon, Gregory Total change: -18.75 | |   |
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| 2nd New York International | New York, NY | USA | 2009-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2285 | 2203 | 1.00 | 4 | -0.70 | 15 | -10.50 | |
|  Stripunsky, Alexander | g | | 2553 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Farber, Nelson M | | | 2001 | USA | 0.50 | 1 | -0.26 | 15 | -3.90 | | | Frumkin, Edward A | | | 2034 | USA | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Yudasin, Leonid | g | | 2550 | ISR | 0.00 | 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) | | | | 37th Annual World Open - Under 2400 Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2202 | 2203 | 4.00 | 7 | 0.50 | 15 | 7.50 | |
| | Adelberg, David | | | 2158 | USA | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Ruiz Gonzalez, Gui | f | | 2130 | MEX | 0.50 | 1 | -0.10 | 15 | -1.50 | | | Hutchinson, Antoine | | | 2185 | USA | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Kudryavtsev, Vadim | | | 2165 | RUS | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Rueda, Libardo | | | 2208 | USA | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Williams, Christopher | | | 2244 | USA | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Tate, Emory A | m | | 2325 | USA | 0.00 | 1 | -0.33 | 15 | -4.95 | |
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) | | | | Continental Absolute Champioship 2009 | Sao Paulo Chess Club/SP | BRA | 2009-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2148 | 2231 | 5.50 | 11 | -1.05 | 15 | -15.75 | |
| | Elihimas, Frederico Gomes | | | 1831 * | BRA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Perez Rodriguez, Luis Manuel | g | | 2512 | CUB | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Mandetta, Joao Danilo Grobman | | | 1987 | BRA | 0.50 | 1 | -0.30 | 15 | -4.50 | | | Abdalla, Luiz Guilherme Aurelli | | | 2089 | BRA | 0.00 | 1 | -0.69 | 15 | -10.35 | | | Costa, Joao Carlos Da | | | 2007 | BRA | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Salama, Andre Sasson | | | 1983 | BRA | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Ferreira, Euclides Roberto | | | 1960 | BRA | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Fusco, Leonardo | f | | 2401 | ARG | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Duarte, Leonardo | m | | 2373 | ARG | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Ferreira, Kleber Victor | | | 2094 | BRA | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Mosquera, Miguel | m | | 2393 | COL | 0.00 | 1 | -0.29 | 15 | -4.35 | | | * 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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