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Individual Calculations April 2009 |
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| Hapke, Ralf Total change: 1.25 | |   |
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| 25.Internationales Boeblinger Open Gruppe B | Boeblingen | GER | 2008-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1670 | 1927 | 2.50 | 3 | 0.05 | 25 | 1.25 | |
|  Gheng, Hannelore | | | 1642 | GER | 1.00 | 1 | 0.16 | 25 | 4.00 | | | Wagner, Philipp | | | 1659 | GER | 0.50 | 1 | -0.33 | 25 | -8.25 | |  Knolmayer, Volker | | | 1708 | GER | 1.00 | 1 | 0.22 | 25 | 5.50 | |
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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