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Individual Calculations April 2009 |
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| Bosma, Achim Total change: -1.50 | |   |
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| Deutsche Amateurmeisterschaft B | Koeln-Bruehl | GER | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2047 | 1983 | 2.00 | 5 | -0.06 | 25 | -1.50 | |
|  Andok, Claus Michael | | | 2075 | GER | 0.50 | 1 | 0.13 | 25 | 3.25 | |  Prueske, Wolfgang | | | 2109 | GER | 0.00 | 1 | -0.33 | 25 | -8.25 | | | Schulz, Stefan | | | 1916 | GER | 0.50 | 1 | -0.09 | 25 | -2.25 | | | Krumm, Johannes | | | 2066 | GER | 1.00 | 1 | 0.61 | 25 | 15.25 | | | Thelen, Armin | | | 2068 | GER | 0.00 | 1 | -0.38 | 25 | -9.50 | |
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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