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Individual Calculations September 2009 |
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| Efroimski, Marsel Total change: 31.50 | |   |
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| ISR 2nd League North 2009 | Various | ISR | 2009-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2166 | 2055 | 1.00 | 3 | -0.05 | 15 | -0.75 | |
|  Lipes, Yosef | | | 2176 | ISR | 1.00 | 1 | 0.66 | 15 | 9.90 | |  Bronstein, Arkady | | | 2196 | ISR | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Ben-Dan, Itay | | | 2127 | ISR | 0.00 | 1 | -0.40 | 15 | -6.00 | |
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) | | | | Maccabiah 2009 Intl Open | Natanya | ISR | 2009-07-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2092 | 2066 | 4.00 | 7 | 0.75 | 15 | 11.25 | |
| | Rozhanski, Yosef | | | 2277 | ISR | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Shternberg, Zvi | | | 1954 | ISR | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Zalkind, Konstantin | f | | 2142 | ISR | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Fishman, Alik | | | 2165 | ISR | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Masarsky, Matvey | | | 1870 | ISR | 1.00 | 1 | 0.25 | 15 | 3.75 | | | Chikman, Alan | | | 2040 | ISR | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Fatalibekova, Elena | | wg | 2199 | RUS | 0.00 | 1 | -0.32 | 15 | -4.80 | |
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) | | | | KFS Weekend 2009 | Kfar Saba | ISR | 2009-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2212 | 2066 | 3.00 | 5 | 1.40 | 15 | 21.00 | |
| | Weisbuch, Udi | | | 2302 | ISR | 0.50 | 1 | 0.30 | 15 | 4.50 | | | Atnilov, Bela | | | 2110 | ISR | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Marcovici, Adrian | | | 2118 | ISR | 1.00 | 1 | 0.57 | 15 | 8.55 | | | Cnaan, Moshe | | | 2142 | ISR | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Sidorenko, Ilya | | | 2390 | ISR | 0.50 | 1 | 0.37 | 15 | 5.55 | |
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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