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Individual Calculations April 2009 |
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| Rosenberg, Evan S Total change: -12.00 | |   |
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| 41st Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2009-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2171 | 2167 | 2.50 | 5 | -0.07 | 15 | -1.05 | |
|  Kudrin, Sergey | g | | 2517 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Karell, Leif K | | | 2028 | USA | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Ellenbogen, Michael J | | | 2139 | USA | 0.00 | 1 | -0.54 | 15 | -8.10 | | | Shvartsman, Andrew N | | | 2053 | USA | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Sana, Mariano | | | 2116 | USA | 1.00 | 1 | 0.43 | 15 | 6.45 | |
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 Amateur Team & US Team East | Parsippany, New Jersey | USA | 2009-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2114 | 2167 | 1.00 | 3 | -0.73 | 15 | -10.95 | |
| | Slatin, David | | | 2051 | USA | 0.00 | 1 | -0.66 | 15 | -9.90 | | | Schwartz, Maxwell | | | 2127 | USA | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Low, Scott T | | | 2163 | USA | 0.00 | 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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