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Individual Calculations September 2009 |
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| Niekrens, Stefan Total change: 24.90 | |   |
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| 6.Eschborner Schach-Open | Eschborn | GER | 2009-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2163 | 1983 | 1.00 | 2 | 0.47 | 15 | 7.05 | |
|  Hirth, Dr.ulrich | | | 2153 | GER | 1.00 | 1 | 0.72 | 15 | 10.80 | |  Rudolph, Peter | | | 2172 | GER | 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) | | | | Sparkassen Chess Meeting Open A | Dortmund | GER | 2009-07-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2237 | 1980 | 0.50 | 3 | -0.05 | 15 | -0.75 | |
| | Boehm, Juergen | | | 2242 | GER | 0.50 | 1 | 0.32 | 15 | 4.80 | | | Wiebe, Patrick | | | 2230 | GER | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Hoolt, Sarah | | wm | 2240 | GER | 0.00 | 1 | -0.18 | 15 | -2.70 | |
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) | | | | 1.Sparkassen Cup | Guetersloh | GER | 2009-08-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2174 | 1980 | 2.00 | 3 | 1.24 | 15 | 18.60 | |
| | Porth, Hartmut | | | 2153 | GER | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Grochtmann, Stephan | | | 2108 | GER | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Kruse, Herbert | | | 2262 | GER | 1.00 | 1 | 0.84 | 15 | 12.60 | |
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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