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Individual Calculations April 2009 |
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| Porat, Mordehi Total change: -16.05 | |   |
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| Israel U20 League 2009 | Various | ISR | 2008-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2028 | 1953 | 1.00 | 5 | -1.07 | 15 | -16.05 | |
|  Caspi, Israel | | | 2303 | ISR | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Boruchovsky, Avital | | | 2079 | ISR | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Taichman, Ori | | | 1832 | ISR | 0.00 | 1 | -0.66 | 15 | -9.90 | | | Portnoy, Matan | | | 1969 | ISR | 0.00 | 1 | -0.48 | 15 | -7.20 | | | Klar, Nir | | | 1959 | ISR | 1.00 | 1 | 0.51 | 15 | 7.65 | |
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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