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Individual Calculations May 2015 |
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| Sassoon, Roei Total change: -19.20 | |   |
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| Liga Alef Shfela 2015 Round 4-6 | various | ISR | 2015-03-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2022 | 1826 | 0.00 | 1 | -0.25 | 40 | -10.00 | |
|  Kogan, Vladimir | | | 2022 | ISR | 0.00 | 1 | -0.25 | 40 | -10.00 | |
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) | | | | Israel Youth Championship Under 14 - 2015 | Ayanot | ISR | 2015-03-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1939 | 1826 | 2.00 | 5 | 0.18 | 40 | 7.20 | |
|  Spitkowski, Thomas | | | 1678 | ISR | 0.00 | 1 | -0.70 | 40 | -28.00 | | | Boruchovsky, Ron | | | 1821 | ISR | 1.00 | 1 | 0.49 | 40 | 19.60 | | | Zlatin, Alexander | | | 2122 | ISR | 1.00 | 1 | 0.85 | 40 | 34.00 | | | Bronstein, Or | | | 2016 | ISR | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Parkhov, Yair | | | 2060 | ISR | 0.00 | 1 | -0.21 | 40 | -8.40 | |
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) | | | | 30th Czerniak Memorial Open A | Tel Aviv | ISR | 2015-04-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1957 | 1845 | 1.00 | 4 | -0.41 | 40 | -16.40 | |
| | Cnaan, Moshe | | | 2019 | ISR | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Bronstein, Or | | | 1979 | ISR | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Emanuel, Yahav | | | 1806 | ISR | 1.00 | 1 | 0.45 | 40 | 18.00 | | | Marcovici, Adrian | | | 2023 | ISR | 0.00 | 1 | -0.27 | 40 | -10.80 | |
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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