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Individual Calculations April 2018 |
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| Gershkowich, David Total change: -57.40 | |   |
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| Nat. Ch. Quarterfinal 2017-18 Kiryat Bialik | Kiryat Bialik | ISR | 2017-12-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2057 | 2242 | 5.50 | 9 | -1.07 | 20 | -21.40 | |
|  Rakita, Efim | | | 1992 | ISR | 1.00 | 1 | 0.19 | 20 | 3.80 | |  Levitan, Tal | | | 2075 | ISR | 1.00 | 1 | 0.28 | 20 | 5.60 | | | Gordon, Evgeny | | | 2009 | ISR | 0.50 | 1 | -0.29 | 20 | -5.80 | | | Gleizer, Mark | f | | 2111 | ISR | 0.00 | 1 | -0.68 | 20 | -13.60 | | | Protkin, Boris | | | 2106 | ISR | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Leibovich, Semion | | | 2081 | ISR | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Frenkel, Ran | | | 2173 | ISR | 0.00 | 1 | -0.60 | 20 | -12.00 | | | Katzir, Moshe | | | 2128 | ISR | 0.00 | 1 | -0.66 | 20 | -13.20 | | | Weintraub, Amit | | | 1842 * | ISR | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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) | | | | Nat. Ch. Quarterfinal 2018 Herzliya | Herzliya | ISR | 2018-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2027 | 2242 | 6.00 | 9 | -0.86 | 20 | -17.20 | |
| | Ben Ari, Yannay | | | 1965 | ISR | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Calabrese, Gabriel | | | 2022 | ISR | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Aroesti, Roee | f | | 2229 | ISR | 0.50 | 1 | -0.02 | 20 | -0.40 | | | Cnaan, Moshe | | | 1971 | ISR | 1.00 | 1 | 0.17 | 20 | 3.40 | | | Zemach, Roee | | | 1975 | ISR | 0.00 | 1 | -0.82 | 20 | -16.40 | | | Mizrahi, Ido | | | 1882 | ISR | 0.00 | 1 | -0.90 | 20 | -18.00 | | | Tyomkyn,mikhail, Dr | | | 2073 | GER | 0.50 | 1 | -0.22 | 20 | -4.40 | | | Yaniv, Yuval | | | 2028 | ISR | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Lavi, Idan | | | 2101 | ISR | 1.00 | 1 | 0.31 | 20 | 6.20 | |
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) | | | | Nat. Ch. Quarterfinal 2018 Petah Tikva | Petah Tikva | ISR | 2018-01-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1981 | 2242 | 6.50 | 9 | -0.72 | 20 | -14.40 | |
| | Klevinskiy, David | | | 1977 | ISR | 0.00 | 1 | -0.82 | 20 | -16.40 | | | Shapira, Avner | | | 1970 | ISR | 0.00 | 1 | -0.83 | 20 | -16.60 | | | Cohen, Hanan | | | 1842 * | ISR | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Peretz, Malkiel | f | | 2229 | ISR | 1.00 | 1 | 0.48 | 20 | 9.60 | | | Mendelboim, Sagi | | | 1893 | ISR | 0.50 | 1 | -0.39 | 20 | -7.80 | | | Shetah, Roi | | | 1842 * | ISR | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Klar, Nir | | | 2069 | ISR | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Aronin, Pavel | | | 2036 | MNC | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Hadari, Ariel | | | 1968 | ISR | 1.00 | 1 | 0.17 | 20 | 3.40 | | | * 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) | | | | Liga Artzit North 2018 Round 5 | various | ISR | 2018-03-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2081 | 2244 | 0.50 | 1 | -0.22 | 20 | -4.40 | |
| | Ben-Natan, Yigal | | | 2081 | ISR | 0.50 | 1 | -0.22 | 20 | -4.40 | |
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) | | |
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