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Individual Calculations September 2011 |
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| Barsky, Sam A Total change: 8.70 | |   |
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| 2011 Marshall June Grand Prix | New York, New York | USA | 2011-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2141 | 2046 | 0.00 | 2 | -0.74 | 15 | -11.10 | |
|  Treger, Yefim | | | 2181 | USA | 0.00 | 1 | -0.32 | 15 | -4.80 | |  Prilleltensky, Matan | | | 2100 | USA | 0.00 | 1 | -0.42 | 15 | -6.30 | |
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) | | | | 39th Annual World Open - U2200 Section | Philadelphia, Pennsylvania | USA | 2011-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2003 | 2046 | 1.50 | 2 | 0.38 | 15 | 5.70 | |
| | Layevskiy, Michael | | | 2044 | USA | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Koren, Eyal | | | 1962 | ISR | 0.50 | 1 | -0.12 | 15 | -1.80 | |
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) | | | | 17th Annual Northeast Open | Stamford, Connecticut | USA | 2011-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2157 | 2044 | 1.50 | 3 | 0.46 | 15 | 6.90 | |
| | Privman, Boris | f | | 2117 | USA | 0.50 | 1 | 0.10 | 15 | 1.50 | | | Bodek, Michael H | | | 2191 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Chernin, Oliver | | | 2163 | USA | 1.00 | 1 | 0.66 | 15 | 9.90 | |
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) | | | | 2011 Manhattan Open - U2300 Section | New York, New York | USA | 2011-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2042 | 2044 | 3.00 | 5 | 0.48 | 15 | 7.20 | |
| | Margiotta, Jason J | | | 1990 | USA | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Pillai, Kadhir A | | | 2013 | USA | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Vilenchuk, Michael | | | 2183 | USA | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Matlin, Anna R | | | 1963 | USA | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Chi, Patrick | | | 2060 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | |
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) | | |
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