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Individual Calculations September 2009 |
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| Willms, Willi Total change: -22.00 | |   |
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| 1.Senioren Schach-Open | Bad Neuenahr-Ahrweiler | GER | 2009-06-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1962 | 1935 | 1.00 | 4 | -0.88 | 25 | -22.00 | |
|  Rotstein, Jefim | f | | 2285 | GER | 0.00 | 1 | -0.11 | 25 | -2.75 | |  Geibel, Henning | | | 1585 | GER | 0.50 | 1 | -0.39 | 25 | -9.75 | | | Boeven, Manfred | | | 2178 | GER | 0.00 | 1 | -0.20 | 25 | -5.00 | | | Klein, Alfred | | | 1800 | GER | 0.50 | 1 | -0.18 | 25 | -4.50 | |
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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