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Individual Calculations September 2009 |
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| Van Der Kooij, Paul Total change: 26.25 | |   |
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| Intomart GfK Open 2009 - group B | Hilversum | NED | 2009-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2026 | 2011 | 3.00 | 4 | 1.05 | 25 | 26.25 | |
|  Kampen, Bert | | | 1908 | NED | 1.00 | 1 | 0.36 | 25 | 9.00 | |  De Heer, Henk | | | 1922 | NED | 1.00 | 1 | 0.38 | 25 | 9.50 | | | Ceko, Jovan | f | | 2259 | SRB | 0.00 | 1 | -0.19 | 25 | -4.75 | | | Veldhuysen, Klaas | | | 2013 | NED | 1.00 | 1 | 0.50 | 25 | 12.50 | |
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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