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Individual Calculations July 2011 |
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| Gershkowich, David Total change: 6.60 | |   |
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| Israel National League 2011 | Various | ISR | 2011-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2359 | 2268 | 1.00 | 3 | -0.14 | 15 | -2.10 | |
|  Porat, Maya | | | 2246 | ISR | 0.00 | 1 | -0.53 | 15 | -7.95 | | | Axelrod, Arie | f | | 2403 | ISR | 1.00 | 1 | 0.68 | 15 | 10.20 | |  Bykhovsky, Avigdor | g | | 2428 | RUS | 0.00 | 1 | -0.29 | 15 | -4.35 | |
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) | | | | Spring 2011 Herzlia | Herzlia | ISR | 2011-04-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2157 | 2268 | 6.50 | 9 | 0.88 | 15 | 13.20 | |
| | Zilberman, Avi | | | 1940 | ISR | 0.50 | 1 | -0.37 | 15 | -5.55 | | | Rotshtein, Maxim | | | 1868 * | ISR | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Bar-Or, Ornan | | | 1975 | ISR | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Zilberman, Yaacov | g | | 2463 | ISR | 1.00 | 1 | 0.75 | 15 | 11.25 | | | Kudischewitsch, David | m | | 2348 | RUS | 0.00 | 1 | -0.39 | 15 | -5.85 | | | Shlam, Yehuda | | | 2128 | ISR | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Axelrod, Arie | f | | 2403 | ISR | 1.00 | 1 | 0.68 | 15 | 10.20 | | | Zalkind, Konstantin | f | | 2123 | ISR | 0.00 | 1 | -0.69 | 15 | -10.35 | | | Hasidovsky, Michael | | | 2167 | ISR | 1.00 | 1 | 0.36 | 15 | 5.40 | | | * 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) | | | | Summer Madateck 2011 | Haifa | ISR | 2011-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2235 | 2272 | 3.00 | 6 | -0.30 | 15 | -4.50 | |
| | Cherikovsky, Yuri | | | 2169 | ISR | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Steinberg, Nitzan | | | 2226 | ISR | 0.50 | 1 | -0.06 | 15 | -0.90 | | | Rabinovich, Joseph | | | 2289 | RUS | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Zorella, Benzion | | | 2122 | ISR | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Aharon, Ofir | | | 2236 | ISR | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Axelrod, Arie | f | | 2369 | ISR | 0.00 | 1 | -0.37 | 15 | -5.55 | |
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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