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Individual Calculations December 2018 |
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| Bosma, Achim Total change: 8.20 | |   |
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| Deutsche Schach-Amateurmeisterschaft 2018-2019 Q1 C | Koblenz-Lahnstein | GER | 2018-11-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1791 | 1878 | 3.50 | 5 | 0.41 | 20 | 8.20 | |
|  Boyko, Oleksiy | | | 1778 | GER | 0.00 | 1 | -0.64 | 20 | -12.80 | |  Forster, Manfred | | | 1671 | GER | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Jaeger, Hans-Ulrich | | | 1785 | GER | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Brinckmann, Dieter | | | 1871 | GER | 1.00 | 1 | 0.49 | 20 | 9.80 | | | Lehnert, Michael | | | 1849 | GER | 0.50 | 1 | -0.04 | 20 | -0.80 | |
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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