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Individual Calculations January 2010 |
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| Gervasoni, Pietro Total change: -10.50 | |   |
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| Luzerner Open 2009 | Luzern | SUI | 2009-10-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2005 | 1990 | 1.50 | 4 | -0.42 | 25 | -10.50 | |
|  El-Mais, Ibaa | | | 2004 | SUI | 0.50 | 1 | 0.02 | 25 | 0.50 | | | Muheim, Sebastien | | | 2040 | FRA | 0.00 | 1 | -0.43 | 25 | -10.75 | |  Jostmeijer, Erik | | | 1960 | NED | 0.50 | 1 | -0.04 | 25 | -1.00 | | | Wahl, Peter | | | 2015 | SUI | 0.50 | 1 | 0.03 | 25 | 0.75 | |
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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