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Individual Calculations September 2013 |
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| Kosokin, Valeriy Total change: -2.70 | |   |
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| 59th Iowa Open Championship | Coralville, Iowa | USA | 2013-08-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2152 | 2273 | 2.50 | 4 | -0.09 | 30 | -2.70 | |
|  Ferguson, Wesley E | | | 2053 | USA | 1.00 | 1 | 0.22 | 30 | 6.60 | |  Madison, Jeremy M | | | 1978 | USA | 1.00 | 1 | 0.15 | 30 | 4.50 | | | Karagianis, Petros | | | 2153 | USA | 0.50 | 1 | -0.16 | 30 | -4.80 | | | Brooks, Michael A | m | | 2424 | USA | 0.00 | 1 | -0.30 | 30 | -9.00 | |
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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