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Individual Calculations July 2011 |
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| Acosta, Mariano A Total change: -10.20 | |   |
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| 20th Annual Chicago Open | Wheeling, Illinois | USA | 2011-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2223 | 2069 | 0.50 | 4 | -0.68 | 15 | -10.20 | |
|  Greanias, Steven D | | | 2168 | USA | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Morshedi, Ali | f | | 2277 | USA | 0.50 | 1 | 0.27 | 15 | 4.05 | |  Zenyuk, Iryna | c | wm | 2222 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Kelley, Dereque D | | | 2226 | USA | 0.00 | 1 | -0.29 | 15 | -4.35 | |
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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