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Individual Calculations January 2009 |
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| Serpik, Ilia Total change: -13.95 | |   |
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| 44th Annual American Open | Los Angeles, California | USA | 2008-11-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2134 | 2240 | 1.00 | 3 | -0.93 | 15 | -13.95 | |
|  Mac Kinnon, Keith M | | | 2076 | CAN | 0.00 | 1 | -0.72 | 15 | -10.80 | |  Akopian, Robert | | | 2105 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Zhang, Kevin Z | | | 2221 | USA | 0.00 | 1 | -0.53 | 15 | -7.95 | |
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) | | |
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