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Individual Calculations August 2019 |
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| Koelmans, Jan Willem Total change: -47.80 | |   |
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| Amsterdam Science Park 2019 B | Amsterdam | NED | 2019-07-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1906 | 1998 | 2.00 | 7 | -2.39 | 20 | -47.80 | |
|  Reinders, Joan | | | 1884 | NED | 0.50 | 1 | -0.16 | 20 | -3.20 | |  Pijlman, Rene | | | 1859 | NED | 0.50 | 1 | -0.19 | 20 | -3.80 | | | De Winter, Arthur | | | 1859 | NED | 0.00 | 1 | -0.69 | 20 | -13.80 | | | Schreuder Peters, Misja | | | 1914 | NED | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Burton, Graham P | | | 1968 | ENG | 0.50 | 1 | -0.04 | 20 | -0.80 | | | Bloem, Mark | | | 1893 | NED | 0.00 | 1 | -0.64 | 20 | -12.80 | | | Beugelink, Erik | | | 1963 | NED | 0.00 | 1 | -0.55 | 20 | -11.00 | |
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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