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Individual Calculations September 2011 |
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| Dobrovolny, Charles Total change: -3.60 | |   |
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| 2011 FIDE Continental America's Amateur Chess Championship | Rosemont, Illinois | USA | 2011-07-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1992 | 1743 | 0.50 | 3 | -0.12 | 30 | -3.60 | |
|  Stevanovic, Miomir | | | 1926 | USA | 0.00 | 1 | -0.26 | 30 | -7.80 | |  Bian, Alex | | | 1922 | USA | 0.50 | 1 | 0.23 | 30 | 6.90 | | | Szpisjak, Steven J | | | 2127 | USA | 0.00 | 1 | -0.09 | 30 | -2.70 | |
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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