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Individual Calculations January 2011 |
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| West, James R Total change: 2.85 | |   |
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| 2010 Marshall November Grand Prix | New York, New York | USA | 2010-11-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1917 | 2110 | 1.00 | 1 | 0.25 | 15 | 3.75 | |
|  Robinson, Darrian | | | 1917 | USA | 1.00 | 1 | 0.25 | 15 | 3.75 | |
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 |
| 2087 | 2110 | 1.00 | 2 | -0.06 | 15 | -0.90 | |
|  Kopiecki, Edward P | | | 2085 | USA | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Berg, George P | | | 2088 | USA | 0.50 | 1 | -0.03 | 15 | -0.45 | |
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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