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Individual Calculations July 2009 |
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| Bondarchuk, Vadim Total change: -22.25 | |   |
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| Oster-Open 2009 | Oberhausen | GER | 2009-04-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2160 | 1969 | 0.50 | 3 | -0.26 | 25 | -6.50 | |
|  Harff, Wilfried | | | 2203 | GER | 0.00 | 1 | -0.21 | 25 | -5.25 | | | Fehmer, Carsten | | | 2133 | GER | 0.50 | 1 | 0.22 | 25 | 5.50 | | | Schroeder, Wilfried | | | 2145 | GER | 0.00 | 1 | -0.27 | 25 | -6.75 | |
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 |
| 2265 | 1969 | 0.00 | 1 | -0.15 | 25 | -3.75 | |
| | Schlange, Stefan | | | 2265 | GER | 0.00 | 1 | -0.15 | 25 | -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) | | | NOTE: K factor changed | | 16.Grossenbaumer Pfingstopen | Duisburg | GER | 2009-05-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2149 | 1969 | 0.00 | 3 | -0.80 | 15 | -12.00 | |
|  Harff, Marcel | | | 2181 | GER | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Mainusch, Martin | | | 2112 | GER | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Hirth, Ulrich, Dr. | | | 2153 | GER | 0.00 | 1 | -0.26 | 15 | -3.90 | |
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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