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Individual Calculations September 2009 |
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| Harezlak, Mariko Total change: -47.25 | |   |
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| Dutch Open - Reserve A | Dieren | NED | 2009-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1943 | 1927 | 0.50 | 5 | -1.89 | 25 | -47.25 | |
|  Groot, Marjoke | | | 1923 | NED | 0.00 | 1 | -0.51 | 25 | -12.75 | | | Belle, Erika | | wm | 2019 | NED | 0.00 | 1 | -0.37 | 25 | -9.25 | | | Maris, Ivo | | | 1967 | NED | 0.00 | 1 | -0.44 | 25 | -11.00 | | | Noppen, Thijs | | | 1966 | NED | 0.50 | 1 | 0.05 | 25 | 1.25 | |  Sekandar, Kambiz | | | 1838 | NED | 0.00 | 1 | -0.62 | 25 | -15.50 | |
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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