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Individual Calculations September 2021 |
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| Duchan, Yoav Total change: 83.88 | |   |
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| Chess4all- Summer in Savyon A | Savyon | ISR | 2021-07-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1633 | 1624 | 2.50 | 4 | 0.48 | 36 | 17.28 | |
|  Fudim, Basya | | | 1467 | ISR | 0.50 | 1 | -0.21 | 36 | -7.56 | |  Neumann, Amit | | | 1357 | ISR | 1.00 | 1 | 0.18 | 36 | 6.48 | | | Eskenazi, Joy | | | 1699 | ISR | 1.00 | 1 | 0.60 | 36 | 21.60 | | | Aronin, Pavel | | | 2009 | MNC | 0.00 | 1 | -0.09 | 36 | -3.24 | |
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) | | | | Kiryat Ono Summer 2021 A | Kiryat Ono | ISR | 2021-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1762 | 1624 | 3.50 | 5 | 1.82 | 36 | 65.52 | |
| | Taragan, Uri | | | 1557 | ISR | 1.00 | 1 | 0.41 | 36 | 14.76 | | | Erentroy, Yehuda | | | 1969 | ISR | 1.00 | 1 | 0.89 | 36 | 32.04 | | | Gavriely, Or | | | 1737 | ISR | 0.50 | 1 | 0.15 | 36 | 5.40 | | | Verny, David | | | 1898 | ISR | 0.00 | 1 | -0.17 | 36 | -6.12 | | | Kochavi, Dana | | | 1651 | ISR | 1.00 | 1 | 0.54 | 36 | 19.44 | |
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 |
| 1868 | 1802 | 1.00 | 5 | -1.13 | 36 | -40.68 | |
| | Poleg, Matan | | | 2197 | ISR | 0.00 | 1 | -0.08 | 36 | -2.88 | | | Amit, Eli | | | 1930 | ISR | 0.00 | 1 | -0.33 | 36 | -11.88 | | | Ribstein, Orel | | | 1935 | ISR | 0.00 | 1 | -0.32 | 36 | -11.52 | | | Leor, Ephraim | | | 1742 | ISR | 1.00 | 1 | 0.42 | 36 | 15.12 | | | Shilon Rahav, Eliran | | | 1535 | ISR | 0.00 | 1 | -0.82 | 36 | -29.52 | |
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 |
| 2096 | 1802 | 2.00 | 5 | 1.16 | 36 | 41.76 | |
| | Shohat, Yotam | f | | 2202 * | ISR | 1.00 | 1 | 0.92 | 36 | 33.12 | | | Rozen, Eytan | m | | 2202 * | ISR | 0.00 | 1 | -0.08 | 36 | -2.88 | | | Levitan, Tal | | | 2139 | ISR | 0.50 | 1 | 0.38 | 36 | 13.68 | | | Weintraub, Amit | | | 1954 | ISR | 0.50 | 1 | 0.20 | 36 | 7.20 | | | Gov, Guy | | | 1985 | ISR | 0.00 | 1 | -0.26 | 36 | -9.36 | | | * 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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