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Individual Calculations January 2020 |
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| Tsafrir, Itay Total change: 56.80 | |   |
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| Israel Youth Championship U13 Qualifiers 2019 - South | Ashdod | ISR | 2019-12-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1415 | 1163 | 2.00 | 3 | 1.42 | 40 | 56.80 | |
|  Tsafrir, Ori | | | 1430 | ISR | 1.00 | 1 | 0.82 | 40 | 32.80 | |  Slutzky, Lior | | | 1376 | ISR | 1.00 | 1 | 0.77 | 40 | 30.80 | | | Roytman, Yoel | | | 1438 | ISR | 0.00 | 1 | -0.17 | 40 | -6.80 | |
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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