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Individual Calculations April 2008 |
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| Ben Artzi, Ido Total change: 26.25 | |   |
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| Kfar Saba Championship 2007 | Kfar Saba | ISR | 2007-09-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2099 | 1986 | 1.00 | 4 | -0.46 | 15 | -6.90 | |
|  Drori, Dan | | | 2199 | ISR | 0.00 | 1 | -0.23 | 15 | -3.45 | |  Novik, Michael | | | 2033 | ISR | 0.50 | 1 | 0.07 | 15 | 1.05 | | | Efroimski, Marsel | | | 1859 | ISR | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Tratatovici, Moise | f | | 2303 | ISR | 0.00 | 1 | -0.13 | 15 | -1.95 | |
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) | | | | Israel U20 League 2008 | Various | ISR | 2007-10-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2094 | 2008 | 0.00 | 1 | -0.38 | 15 | -5.70 | |
| | Galikson, Ofer | | | 2094 | ISR | 0.00 | 1 | -0.38 | 15 | -5.70 | |
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) | | | | Givataiim Winter 2008 Main | Givataiim | ISR | 2007-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2155 | 2008 | 4.50 | 6 | 2.59 | 15 | 38.85 | |
| | Arlinsky, Uriel | | | 2299 | ISR | 1.00 | 1 | 0.85 | 15 | 12.75 | | | Shlam, Yehuda | | | 2163 | ISR | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Bar-Or, Ornan | | | 1995 | ISR | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Zalkind, Konstantin | f | | 2230 | ISR | 1.00 | 1 | 0.78 | 15 | 11.70 | | | Cohen, Or | | | 2280 | ISR | 0.50 | 1 | 0.33 | 15 | 4.95 | | | Levi, Nisan | | | 1963 | ISR | 1.00 | 1 | 0.44 | 15 | 6.60 | |
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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