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Individual Calculations September 2009 |
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| Porter, Ryan W Total change: -10.05 | |   |
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| Southern California Championship Candidates | Garden Grove, California | USA | 2009-06-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2188 | 2284 | 1.00 | 3 | -0.86 | 15 | -12.90 | |
|  Kudryavtsev, Vadim | | | 2165 | RUS | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Morshedi, Ali | f | | 2347 | USA | 0.00 | 1 | -0.41 | 15 | -6.15 | |  Huang, Vincent | | | 2051 | USA | 0.00 | 1 | -0.79 | 15 | -11.85 | |
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) | | | | 14th Annual Pacific Coast Open | Agoura Hills, California | USA | 2009-07-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2196 | 2279 | 2.00 | 3 | 0.19 | 15 | 2.85 | |
| | Popova, Elena | | | 2031 | RUS | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Aigner, Michael | | | 2240 | USA | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Manukyan, Garush | | | 2317 | ARM | 0.00 | 1 | -0.45 | 15 | -6.75 | |
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) | | |
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