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Individual Calculations September 2009 |
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| Koch, Werner A. Total change: -52.25 | |   |
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| Swiss Chess Open 2009 | Luzern | SUI | 2009-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1905 | 1856 | 1.00 | 4 | -0.74 | 25 | -18.50 | |
|  Cittadini, Dario | | | 2015 | SUI | 0.00 | 1 | -0.29 | 25 | -7.25 | |  Thommes, Volker | | | 1946 | SUI | 0.00 | 1 | -0.38 | 25 | -9.50 | | | Steck, Kurt | | | 1856 | SUI | 0.00 | 1 | -0.50 | 25 | -12.50 | | | Bucher, Samuel | | | 1803 | SUI | 1.00 | 1 | 0.43 | 25 | 10.75 | |
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) | | | | Jubilee Open Allgemeines Turnier | Zurich | SUI | 2009-08-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1875 | 1856 | 1.50 | 6 | -1.35 | 25 | -33.75 | |
| | Heinatz, Maria | | | 1930 | SUI | 0.00 | 1 | -0.40 | 25 | -10.00 | | | Niccoli, Paolo | | | 1918 | ITA | 0.00 | 1 | -0.41 | 25 | -10.25 | | | Lanz, Martin | | | 1979 | SUI | 0.50 | 1 | 0.17 | 25 | 4.25 | | | Cramatte, Jacques | | | 1768 | SUI | 1.00 | 1 | 0.38 | 25 | 9.50 | | | Lustenberger, Josef | | | 1779 | SUI | 0.00 | 1 | -0.61 | 25 | -15.25 | | | Del Val, Moise | | | 1873 | SUI | 0.00 | 1 | -0.48 | 25 | -12.00 | |
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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