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Individual Calculations February 2015 |
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| Zifroni, Dov Total change: -10.10 | |   |
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| National Team Championship 2015 Round 1-4 | various | ISR | 2015-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2489 | 2491 | 1.00 | 4 | -1.01 | 10 | -10.10 | |
|  Kalka, Arkadius Georg | f | | 2385 | GER | 0.50 | 1 | -0.14 | 10 | -1.40 | | | Bykhovsky, Avigdor | g | | 2417 | RUS | 0.50 | 1 | -0.10 | 10 | -1.00 | |  Alterman, Boris | g | | 2587 | ISR | 0.00 | 1 | -0.37 | 10 | -3.70 | | | Dvoirys, Semen I. | g | | 2566 | RUS | 0.00 | 1 | -0.40 | 10 | -4.00 | |
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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