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Individual Calculations January 2019 |
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| Katkov, Michelle Total change: 66.40 | |   |
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| World Youth Under-16 Chess Olympiad 2018 | Konya | TUR | 2018-11-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1983 | 1847 | 2.00 | 4 | 0.58 | 40 | 23.20 | |
|  Cui, Leonardo | | | 1569 | CAN | 1.00 | 1 | 0.17 | 40 | 6.80 | |  Kuhar, Larisa | | | 1916 | SLO | 1.00 | 1 | 0.60 | 40 | 24.00 | | | Kara, Yanki | | | 2212 | TUR | 0.00 | 1 | -0.10 | 40 | -4.00 | | | Boyer, Mahel | | | 2235 | FRA | 0.00 | 1 | -0.09 | 40 | -3.60 | |
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) | | | | Elite Youth League - South 2018/9 6-7 | Various | ISR | 2018-11-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1830 | 1847 | 0.50 | 2 | -0.53 | 40 | -21.20 | |
| | Iliaguev, Daniel | | | 2098 | ISR | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Kushnir, Arie | | | 1562 | ISR | 0.50 | 1 | -0.34 | 40 | -13.60 | |
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) | | | | Israel Women Championship Final 2018 | Maalot | ISR | 2018-12-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2014 | 1887 | 4.50 | 8 | 1.61 | 40 | 64.40 | |
| | Efroimski, Marsel | | wg | 2287 * | ISR | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Shaul Zeidner, Lyad | | | 1671 | ISR | 1.00 | 1 | 0.22 | 40 | 8.80 | | | Nesterovskaya, Anzhelika | | wf | 2130 | UKR | 0.50 | 1 | 0.30 | 40 | 12.00 | | | Haitovich, Avital | | | 1979 | ISR | 0.50 | 1 | 0.13 | 40 | 5.20 | | | Buzukashvili, Sofia | | | 1963 | RUS | 1.00 | 1 | 0.60 | 40 | 24.00 | | | Reprun, Nadejda | | | 2016 | ISR | 0.00 | 1 | -0.33 | 40 | -13.20 | | | Shvayger, Yuliya | m | wg | 2287 * | ISR | 0.50 | 1 | 0.42 | 40 | 16.80 | | | Ovechkin, Lilia | | | 1779 | ISR | 1.00 | 1 | 0.35 | 40 | 14.00 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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