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Individual Calculations September 2009 |
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| Lavi, Royi Total change: -17.75 | |   |
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| Spring Rishon 2009 | Rishon Le-Zion | ISR | 2009-05-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1898 | 1728 | 1.00 | 7 | -1.01 | 25 | -25.25 | |
|  Kulikov, Alexander | | | 2061 | ISR | 0.00 | 1 | -0.12 | 25 | -3.00 | |  Veinberg, Nimrod | | | 1869 | ISR | 0.00 | 1 | -0.31 | 25 | -7.75 | | | Papiashvilli, Kobi | | | 1779 | ISR | 0.50 | 1 | 0.07 | 25 | 1.75 | | | Ben-Ari, Hogel | | | 1934 | ISR | 0.00 | 1 | -0.24 | 25 | -6.00 | | | Dvir, Ofir | | | 1772 | ISR | 0.50 | 1 | 0.06 | 25 | 1.50 | | | Gera, Yuval | | | 1928 | ISR | 0.00 | 1 | -0.24 | 25 | -6.00 | | | Heruti, Ofer | | | 1942 | ISR | 0.00 | 1 | -0.23 | 25 | -5.75 | |
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) | | | NOTE: K factor changed | | Maccabiah 2009 Intl Open | Natanya | ISR | 2009-07-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1945 | 1728 | 2.00 | 6 | 0.50 | 15 | 7.50 | |
| | Hadari, Ariel | | | 2009 | ISR | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Blaushtain, Boris | | | 2128 * | ISR | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Klein, Rafael | | | 1567 | ISR | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Volkov, Yuri | | | 2033 | ISR | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Magen, Paz | | | 2002 | ISR | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Zurel, Maxim | | | 1929 | ISR | 1.00 | 1 | 0.76 | 15 | 11.40 | | | * 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) | | |
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