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Individual Calculations January 2011 |
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| Tom, George Total change: -13.35 | |   |
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| 2010 Marshall Chess Club Championship | New York, New York | USA | 2010-10-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2103 | 2034 | 3.50 | 8 | 0.24 | 15 | 3.60 | |
|  Ostrovskiy, Aleksandr | c | | 2243 | USA | 0.50 | 1 | 0.27 | 15 | 4.05 | |  Polyakin, Vladimir | | | 2114 | USA | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Sena, Juan | | | 2159 | DOM | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Erdei, Andras | | | 2157 | HUN | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Black Jr, James A | | | 1963 | USA | 0.00 | 1 | -0.60 | 15 | -9.00 | | | Frumkin, Edward A | | | 1997 | USA | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Kats, Alena | | | 2055 | USA | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Chernin, Oliver | | | 2138 | USA | 0.00 | 1 | -0.36 | 15 | -5.40 | |
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) | | | | 2010 Marshall November Grand Prix | New York, New York | USA | 2010-11-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2076 | 2030 | 1.00 | 3 | -0.32 | 15 | -4.80 | |
| | Rosenberg, Evan S | | | 2213 | USA | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Spigel, David E | | | 1993 | USA | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Black Jr, James A | | | 2023 | USA | 0.00 | 1 | -0.51 | 15 | -7.65 | |
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) | | | | 41st Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2010-11-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2144 | 2030 | 1.00 | 5 | -0.81 | 15 | -12.15 | |
| | Fisher, William | | | 2161 | USA | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Fayvinov, Zakhar | f | | 2132 | USA | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Zaikov, Oleg N | f | | 2372 | USA | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Hess, Peter | | | 1934 | USA | 0.50 | 1 | -0.13 | 15 | -1.95 | | | Smarty, Sylvester | | | 2121 | USA | 0.00 | 1 | -0.38 | 15 | -5.70 | |
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) | | |
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