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Individual Calculations April 2009 |
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| Perelshteyn, Eugene Total change: 4.30 | |   |
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| 41st Annual Virginia Open | McLean, Virginia | USA | 2009-02-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2273 | 2539 | 4.50 | 5 | 0.43 | 10 | 4.30 | |
|  Rogalski, Timothy | | | 2189 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | |  Greanias, Steven D | | | 2189 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Uesugi, Shinsaku | | | 2243 | JPN | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Kaufman, Lawrence | g | | 2409 | USA | 1.00 | 1 | 0.32 | 10 | 3.20 | | | Yeager, Daniel A | f | | 2336 | USA | 0.50 | 1 | -0.26 | 10 | -2.60 | |
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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