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Individual Calculations January 2009 |
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| Zerfass, Otfried Total change: -18.75 | |   |
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| 16.Blankenburger Schachturnier | Blankenburg | GER | 2008-10-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1998 | 2017 | 2.00 | 5 | -0.61 | 15 | -9.15 | |
|  Hirth, Ulrich, Dr. | | | 2163 | GER | 0.00 | 1 | -0.30 | 15 | -4.50 | |  Metzger, Albert | | | 1939 | GER | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Gering, Samuel | | | 1900 | GER | 0.00 | 1 | -0.66 | 15 | -9.90 | | | Rothe, Guido | | | 2225 | GER | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Walther, Joachim | | | 1764 | GER | 1.00 | 1 | 0.19 | 15 | 2.85 | |
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 Amateurmeisterschaft B | Halle | GER | 2008-10-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1993 | 2017 | 1.50 | 4 | -0.63 | 15 | -9.45 | |
| | Simon, Christopher | | | 1914 | GER | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Silz, Elisa | | | 1929 | GER | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Schaefers, Andreas | | | 2053 | GER | 1.00 | 1 | 0.55 | 15 | 8.25 | | | Wortmann, Klaus-Peter | | | 2075 | GER | 0.00 | 1 | -0.42 | 15 | -6.30 | |
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) | | | | Deutschland Cup Gruppe 12 | Dresden | GER | 2008-11-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2015 | 2017 | 3.00 | 6 | -0.01 | 15 | -0.15 | |
| | Czarnik, Josef | | | 2026 | GER | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Lorenz, Michael | | | 2036 | GER | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Warnk, Torsten | | | 2003 | GER | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Roitburd, Marina | | | 2036 | MDA | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Reinemann, Guenter,dr. | | | 1967 | GER | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Schmidt, Hans-Gerd | | | 2022 | GER | 1.00 | 1 | 0.51 | 15 | 7.65 | |
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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