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Individual Calculations July 2009 |
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| Cordsen, Rudolf Total change: -23.05 | |   |
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| Oster-Open 2009 | Oberhausen | GER | 2009-04-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2116 | 1929 | 0.50 | 3 | -0.28 | 25 | -7.00 | |
|  Patscha, Elias | | | 2176 | GER | 0.00 | 1 | -0.19 | 25 | -4.75 | | | Wortmann, Dirk | | | 2031 | GER | 0.50 | 1 | 0.14 | 25 | 3.50 | |  Koenig, Christian | | | 2140 | GER | 0.00 | 1 | -0.23 | 25 | -5.75 | |
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) | | | | 24.Ruhrhalbinsel Open | Essen | GER | 2009-05-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2201 | 1929 | 0.00 | 2 | -0.36 | 25 | -9.00 | |
| | Litwak, Aleksej | f | | 2278 | GER | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Vasiljev, Jurij | | | 2123 | LAT | 0.00 | 1 | -0.25 | 25 | -6.25 | |
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) | | | NOTE: K factor changed | | 16.Grossenbaumer Pfingstopen | Duisburg | GER | 2009-05-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2136 | 1929 | 0.00 | 2 | -0.47 | 15 | -7.05 | |
| | Stefkovic, Marijan | | | 2149 | GER | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Vasiljev, Jurij | | | 2123 | LAT | 0.00 | 1 | -0.25 | 15 | -3.75 | |
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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