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Individual Calculations December 2018 |
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| Ben Ari, Yannay Total change: -84.80 | |   |
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| Herzliya Championship 2018 A | Hertzeliya | ISR | 2018-09-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1797 | 2022 | 4.00 | 8 | -1.95 | 40 | -78.00 | |
|  Qasem, Huda | | | 1637 | ISR | 0.00 | 1 | -0.91 | 40 | -36.40 | |  Horowitz, Guy | | | 1696 | ISR | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Tal-Shahar, Liam | | | 1738 | ISR | 0.50 | 1 | -0.34 | 40 | -13.60 | | | Weissberg, Harel | | | 1622 * | ISR | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Zemach, Roee | | | 2078 | ISR | 0.00 | 1 | -0.42 | 40 | -16.80 | | | Levi, Yoel | | | 1785 | ISR | 0.50 | 1 | -0.30 | 40 | -12.00 | | | Cohen, Dvir | | | 1622 * | ISR | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Yaniv, Yuval | | | 2199 | ISR | 0.00 | 1 | -0.27 | 40 | -10.80 | | | * 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) | | | | Mark Center Autumn 2018 A | Tel Aviv | ISR | 2018-10-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1942 | 2015 | 4.50 | 7 | 0.32 | 40 | 12.80 | |
| | Tal, Rami | | | 1808 | ISR | 1.00 | 1 | 0.23 | 40 | 9.20 | | | Zilberman, Yaacov | g | | 2348 | ISR | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Levi, Or | | | 1691 | ISR | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Guz, Ari | | | 1921 | ISR | 0.50 | 1 | -0.13 | 40 | -5.20 | | | Bar-Or, Ornan | | | 1931 | ISR | 1.00 | 1 | 0.38 | 40 | 15.20 | | | Chachashvili, Zuri | | | 2055 | ISR | 0.00 | 1 | -0.44 | 40 | -17.60 | | | Smoliar, Klim | | | 1840 | ISR | 1.00 | 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) | | | | Elite Youth League - North 2018/9 4-5 | Various | ISR | 2018-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2043 | 2030 | 0.50 | 2 | -0.49 | 40 | -19.60 | |
| | Erenberg, Ariel | m | | 2415 | ISR | 0.00 | 1 | -0.09 | 40 | -3.60 | | | Yusupoff, Yoav | | | 1671 | ISR | 0.50 | 1 | -0.40 | 40 | -16.00 | |
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) | | |
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