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Individual Calculations May 2015 |
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| Williamson, Roger G Total change: -12.20 | |   |
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| 2nd 4NCL Congress Open | Wakefield | ENG | 2015-04-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2000 | 2184 | 3.00 | 5 | -0.61 | 20 | -12.20 | |
|  Bin-Suhayl, Ieysaa | | | 1879 | ITA | 0.50 | 1 | -0.36 | 20 | -7.20 | |  Webster, Richard J | | | 1961 | ENG | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Horton, Andrew P | | | 2269 | ENG | 0.00 | 1 | -0.38 | 20 | -7.60 | | | Cowan, Richard M | | | 1899 | ENG | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Garnett, John S | | | 1993 | ENG | 0.50 | 1 | -0.25 | 20 | -5.00 | |
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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