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Individual Calculations September 2013 |
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| Gofshtein, Semion Total change: -30.90 | |   |
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| Macabbiah 2013 Open | Jerusalem | ISR | 2013-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1937 | 1994 | 1.50 | 4 | -0.81 | 30 | -24.30 | |
|  Parkhov, Yair | | | 1780 | ISR | 0.00 | 1 | -0.77 | 30 | -23.10 | | | Petrovski, Aleksandar | | | 2226 | MKD | 0.50 | 1 | 0.29 | 30 | 8.70 | |  Lukovski, Lev | | | 1889 | GER | 0.00 | 1 | -0.64 | 30 | -19.20 | | | Gunders, Elad | | | 1853 | ISR | 1.00 | 1 | 0.31 | 30 | 9.30 | |
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 | | Gideon Japhet International Open B | Jerusalem | ISR | 2013-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2007 | 1994 | 1.00 | 3 | -0.44 | 15 | -6.60 | |
| | Levin, Natan | | | 1888 | ISR | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Golbart, Vadim | | | 2075 | ISR | 0.00 | 1 | -0.39 | 15 | -5.85 | | | Vaisberg, Michael | | | 2058 | ISR | 0.00 | 1 | -0.41 | 15 | -6.15 | |
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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