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Individual Calculations March 2010 |
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| Gurczak, John Total change: 1.00 | |   |
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| 19th Annual North American Open | Las Vegas, Nevada | USA | 2009-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2056 | 2048 | 2.00 | 4 | 0.04 | 25 | 1.00 | |
|  Zhang, Eric R | | | 1917 | USA | 1.00 | 1 | 0.32 | 25 | 8.00 | |  Mariano, Christine | | wm | 2037 | PHI | 1.00 | 1 | 0.48 | 25 | 12.00 | | | Holliman, Bob | | | 2164 | USA | 0.00 | 1 | -0.34 | 25 | -8.50 | | | Velikanov, Alexander | | | 2106 | USA | 0.00 | 1 | -0.42 | 25 | -10.50 | |
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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