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Individual Calculations January 2011 |
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| Treger, Yefim Total change: -26.55 | |   |
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| Marshall CC FIDE Thursdays | New York, NY | USA | 2010-10-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2040 | 2194 | 0.00 | 1 | -0.71 | 15 | -10.65 | |
|  Waxman, Marian | | | 2040 | USA | 0.00 | 1 | -0.71 | 15 | -10.65 | |
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) | | | | 2010 Marshall Chess Club Championship | New York, New York | USA | 2010-10-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2244 | 2194 | 4.50 | 8 | 0.92 | 15 | 13.80 | |
|  Paragua, Mark C | g | | 2496 | PHI | 0.50 | 1 | 0.35 | 15 | 5.25 | | | Kudrin, Sergey | g | | 2546 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Black Jr, James A | | | 1963 | USA | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Polyakin, Vladimir | | | 2114 | USA | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Chernin, Oliver | | | 2138 | USA | 0.00 | 1 | -0.58 | 15 | -8.70 | | | Kopiecki, Edward P | | | 2097 | USA | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Bonin, Jay R | m | | 2317 | USA | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Salakhutdinov, Ildar | | | 2279 | RUS | 1.00 | 1 | 0.62 | 15 | 9.30 | |
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) | | | | 41st Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2010-11-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2059 | 2190 | 2.00 | 5 | -1.35 | 15 | -20.25 | |
| | Tan, Mackinley E | | | 2028 | USA | 0.00 | 1 | -0.71 | 15 | -10.65 | | | Mucerino Jr, Joseph | | | 2074 | USA | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Itkis, Hana | | wf | 2087 | USA | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Miller, Jake S | | | 1946 | USA | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Williams, Justus D | | | 2158 | USA | 0.00 | 1 | -0.54 | 15 | -8.10 | |
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 December Grand Prix | New York, New York | USA | 2010-12-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2137 | 2190 | 0.50 | 2 | -0.63 | 15 | -9.45 | |
| | Margiotta, Jason J | | | 1978 | USA | 0.50 | 1 | -0.27 | 15 | -4.05 | | | Hoffmann, Asa | f | | 2296 | 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) | | |
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