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Individual Calculations September 2021 |
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| Ribstein, Orel Total change: 52.00 | |   |
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| Liga Alef Shfela 2021 Round 9 | Various | ISR | 2021-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2223 | 1863 | 0.00 | 1 | -0.10 | 40 | -4.00 | |
|  Svoisky, Daniel | | | 2223 | ISR | 0.00 | 1 | -0.10 | 40 | -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) | | | | Maccabi Ramat Gan Chess Championship 2021 A | Ramat Gan | ISR | 2021-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2101 | 1935 | 2.50 | 5 | 0.98 | 40 | 39.20 | |
| | Guz, Ari | f | | 2303 | ISR | 0.00 | 1 | -0.10 | 40 | -4.00 | |  Gruzman, Ilya | | | 2067 | ISR | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Duchan, Yoav | | | 1802 | ISR | 1.00 | 1 | 0.32 | 40 | 12.80 | | | Uritsky, Yonathan | | | 2165 | ISR | 0.50 | 1 | 0.29 | 40 | 11.60 | | | Zalkind, Konstantin | f | | 2167 | ISR | 1.00 | 1 | 0.79 | 40 | 31.60 | |
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) | | | | Max Mit Memorial 2021 A | Rishon Lezion | ISR | 2021-08-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2150 | 1935 | 1.50 | 4 | 0.42 | 40 | 16.80 | |
| | Gleizer, Adar | | | 1786 | ISR | 1.00 | 1 | 0.30 | 40 | 12.00 | | | Zanan, Evgeny | g | | 2335 * | ISR | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Kaganskiy, Gleb | f | | 2279 | RUS | 0.50 | 1 | 0.38 | 40 | 15.20 | | | Vagman, Roy | c | | 2200 | ISR | 0.00 | 1 | -0.18 | 40 | -7.20 | | | * 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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