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Individual Calculations April 2009 |
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| Zerweck, Christoph Total change: 4.50 | |   |
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| 25.Internationales Boeblinger Open Gruppe B | Boeblingen | GER | 2008-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1858 | 1789 | 1.00 | 2 | 0.18 | 25 | 4.50 | |
|  Giugno, Carmelo | | | 1790 | ITA | 1.00 | 1 | 0.50 | 25 | 12.50 | | | Schmidt, Martin | | | 1925 | GER | 0.00 | 1 | -0.32 | 25 | -8.00 | |
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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