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Individual Calculations September 2009 |
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| Petrovs, Aleksandrs Total change: -20.25 | |   |
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| Czech Open 2009 B - Tchibo Open | Pardubice | CZE | 2009-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1920 | 1777 | 1.50 | 9 | -1.35 | 15 | -20.25 | |
|  Butzke, Daniel | | | 2023 | GER | 0.50 | 1 | 0.31 | 15 | 4.65 | |  Janssen, Volker | | | 2037 | GER | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Vladyka, Vaclav | | | 1992 | CZE | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Vymetal, Milan | | | 1952 | CZE | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Kropman, Alexei | | | 1937 | GER | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Horyna, Josef | | | 1887 | CZE | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Somova, Tatjana | | | 1890 | LAT | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Portych, Vaclav | | | 1835 | CZE | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Pantusenko, Valeria | | | 1725 | GER | 0.50 | 1 | -0.07 | 15 | -1.05 | |
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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