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Individual Calculations September 2009 |
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| Zhang, Eric R Total change: 9.00 | |   |
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| Southern California Championship Candidates | Garden Grove, California | USA | 2009-06-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2136 | 1803 | 1.50 | 3 | 1.13 | 15 | 16.95 | |
|  Steinfl, Alessandro | | | 2153 | ITA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Akopian, Robert | | | 2117 | USA | 0.50 | 1 | 0.36 | 15 | 5.40 | |  Gutman, Joshua | | | 2138 | USA | 1.00 | 1 | 0.88 | 15 | 13.20 | |
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) | | | | 49th Annual Pacific Southwest Open | Los Angeles, California | USA | 2009-07-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2145 | 1859 | 0.00 | 3 | -0.53 | 15 | -7.95 | |
| | Banawa, Joel | f | | 2259 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Chapa, Eric | | | 2183 | USA | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Hough, Randall D | | | 1992 | USA | 0.00 | 1 | -0.32 | 15 | -4.80 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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