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Individual Calculations September 2009 |
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| Rotstein, Jefim Total change: -39.90 | |   |
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| 1.Senioren Schach-Open | Bad Neuenahr-Ahrweiler | GER | 2009-06-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2156 | 2373 | 6.00 | 7 | 0.71 | 10 | 7.10 | |
|  Willms, Willi | | | 2023 | GER | 1.00 | 1 | 0.11 | 10 | 1.10 | |  Priebs, Ludger | | | 2034 | GER | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Buzov, Boris | | | 2135 | UKR | 0.50 | 1 | -0.30 | 10 | -3.00 | | | Engels, Gerd | | | 2023 | GER | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Khanukov, Boris | m | | 2401 | GER | 0.50 | 1 | 0.04 | 10 | 0.40 | | | Weiler, Wolfgang | | | 2243 | GER | 1.00 | 1 | 0.32 | 10 | 3.20 | | | Schumacher, Gottfried | | | 2230 | GER | 1.00 | 1 | 0.31 | 10 | 3.10 | |
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) | | | | 13.Godesburg Open | Bad Godesberg | GER | 2009-07-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2096 | 2370 | 5.50 | 9 | -1.74 | 10 | -17.40 | |
| | Gerhards, Bernd | | | 1970 * | GER | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Opitz, Frank | | | 2001 | GER | 1.00 | 1 | 0.10 | 10 | 1.00 | | | Knosowski, Hans Josef | | | 1988 | GER | 1.00 | 1 | 0.09 | 10 | 0.90 | | | Wacker, Peter | | | 2236 | GER | 0.00 | 1 | -0.68 | 10 | -6.80 | | | Weiler, Wolfgang | | | 2217 | GER | 1.00 | 1 | 0.30 | 10 | 3.00 | | | Romaker, Johann | | | 2035 | GER | 0.50 | 1 | -0.38 | 10 | -3.80 | | | Pauly, Carlo | | | 2020 | GER | 0.50 | 1 | -0.39 | 10 | -3.90 | | | Boidman, Yuri | m | | 2402 | GER | 0.50 | 1 | 0.04 | 10 | 0.40 | | | Winterberg, Lukas | | | 1997 | GER | 0.00 | 1 | -0.90 | 10 | -9.00 | | | * 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) | | | | Czech Open 2009 A - Pardubice Open | Pardubice | CZE | 2009-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2233 | 2370 | 3.00 | 9 | -3.15 | 10 | -31.50 | |
| | Folk, Petr | | | 2210 | CZE | 0.50 | 1 | -0.21 | 10 | -2.10 | | | Denisov, Ivan | | | 2192 | RUS | 0.50 | 1 | -0.23 | 10 | -2.30 | | | Lissaeng, Chrisopher | | | 2240 | SWE | 0.00 | 1 | -0.68 | 10 | -6.80 | | | Van Den Berg, Hilke | | | 2234 | NED | 1.00 | 1 | 0.32 | 10 | 3.20 | | | De Wit, Tex | c | | 2255 | NED | 0.00 | 1 | -0.66 | 10 | -6.60 | | | Mordechai, Hanan | | | 2263 | ISR | 1.00 | 1 | 0.35 | 10 | 3.50 | | | Korinek, Ondrej | | | 2275 | CZE | 0.00 | 1 | -0.63 | 10 | -6.30 | | | Ruckschloss, Karol | f | | 2259 | SVK | 0.00 | 1 | -0.65 | 10 | -6.50 | | | Sohl, Jan | | | 2166 | GER | 0.00 | 1 | -0.76 | 10 | -7.60 | |
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) | | | | Deutsche Senioren-Einzelmeisterschaft A | Dresden | GER | 2009-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2209 | 2370 | 6.50 | 9 | 0.19 | 10 | 1.90 | |
| | Mueller, Klaus | | | 2025 | GER | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Welz, Peter, Dr. | f | | 2101 | GER | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Hottes, Dieter | | | 2144 | GER | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Limberg, Siegfried | | | 2132 | GER | 1.00 | 1 | 0.20 | 10 | 2.00 | | | Gross, Werner | | | 2249 | GER | 1.00 | 1 | 0.34 | 10 | 3.40 | | | Uhlmann, Wolfgang | g | | 2415 | GER | 1.00 | 1 | 0.56 | 10 | 5.60 | | | Clemens, Christian, Dr. | f | | 2290 | GER | 0.00 | 1 | -0.61 | 10 | -6.10 | | | Postler, Reinhard | f | | 2303 | GER | 0.00 | 1 | -0.59 | 10 | -5.90 | | | Neese, Hans-Joachim | f | | 2220 | GER | 0.50 | 1 | -0.20 | 10 | -2.00 | |
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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