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Individual Calculations February 2017 |
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| Kopelevich, Boris Total change: 0.80 | |   |
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| Liga Alef North (Midweek) 2017 Round 1-3 | various | ISR | 2017-01-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1975 | 2096 | 2.00 | 3 | 0.02 | 40 | 0.80 | |
|  Ochman, Philip | | | 1889 | ISR | 0.50 | 1 | -0.27 | 40 | -10.80 | | | Chertok, Yuriy | | | 2105 | RUS | 1.00 | 1 | 0.51 | 40 | 20.40 | |  Rakita, Efim | | | 1932 | ISR | 0.50 | 1 | -0.22 | 40 | -8.80 | |
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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