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Individual Calculations September 2009 |
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| Peretz, Malkiel Total change: 12.30 | |   |
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| ISR 2nd League North 2009 | Various | ISR | 2009-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2211 | 2256 | 2.50 | 3 | 0.82 | 15 | 12.30 | |
|  Zak, Uri | | | 2198 | ISR | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Lacht, Gregory | | | 2203 | ISR | 1.00 | 1 | 0.43 | 15 | 6.45 | |  Vitebsky, Georgy | | | 2231 | ISR | 1.00 | 1 | 0.47 | 15 | 7.05 | |
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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