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Individual Calculations September 2023 |
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| Koes, Richard Total change: 27.20 | |   |
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| RSB Open 2023 | Rotterdam | NED | 2023-08-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1980 | 1761 | 2.50 | 5 | 1.36 | 20 | 27.20 | |
|  Pietrow, Andrzej | | | 2020 | NED | 0.00 | 1 | -0.18 | 20 | -3.60 | |  Sturm, Pieter | | | 2037 | NED | 0.50 | 1 | 0.33 | 20 | 6.60 | | | Van Houten, Arno | | | 1867 | NED | 1.00 | 1 | 0.64 | 20 | 12.80 | | | De Wit, Cor | | | 2015 | NED | 1.00 | 1 | 0.81 | 20 | 16.20 | | | Segers, Albert | | | 1962 | NED | 0.00 | 1 | -0.24 | 20 | -4.80 | |
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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