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Individual Calculations September 2021 |
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| Levy, Zohar Total change: 3.80 | |   |
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| Liga Alef Sharon 2021 Round 9 | Various | ISR | 2021-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1905 | 1857 | 0.00 | 1 | -0.43 | 20 | -8.60 | |
|  Leibi, Yaniv | | | 1905 | ISR | 0.00 | 1 | -0.43 | 20 | -8.60 | |
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) | | | | Maccabi Ramat Gan Chess Championship 2021 A | Ramat Gan | ISR | 2021-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2009 | 1855 | 2.50 | 5 | 0.90 | 20 | 18.00 | |
| | Zemach, Roee | f | | 2247 | ISR | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Zemach, Nadav | | | 2146 | ISR | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Shilon Rahav, Eliran | | | 1535 | ISR | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Weintraub, Amit | | | 1954 | ISR | 1.00 | 1 | 0.64 | 20 | 12.80 | | | Uritsky, Yonathan | | | 2165 | ISR | 1.00 | 1 | 0.86 | 20 | 17.20 | |
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 |
| 1979 | 1855 | 1.50 | 5 | -0.28 | 20 | -5.60 | |
| | Levin, Guy | f | | 2255 * | ISR | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Gov, Guy | | | 1985 | ISR | 0.00 | 1 | -0.32 | 20 | -6.40 | | | Levi, Yoel | | | 1775 | ISR | 0.50 | 1 | -0.11 | 20 | -2.20 | | | Marcovici, Adrian | | | 1838 | ISR | 1.00 | 1 | 0.48 | 20 | 9.60 | | | Tsirilman, Guy | | | 2044 | ISR | 0.00 | 1 | -0.25 | 20 | -5.00 | | | * 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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