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Individual Calculations February 2019 |
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| Kopelevich, Boris Total change: -7.80 | |   |
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| Liga Alef Tzafon Yom Chol 2019 1-2 | Various | ISR | 2019-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1640 | 1987 | 0.50 | 1 | -0.39 | 20 | -7.80 | |
|  Mishkovsky, Israel | | | 1640 | ISR | 0.50 | 1 | -0.39 | 20 | -7.80 | |
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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