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Individual Calculations July 2010 |
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| Botham, C Paul Total change: -6.60 | |   |
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| Four Nations Chess League (4NCL) | Various | ENG | 2009-10-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2050 | 2040 | 1.50 | 4 | -0.44 | 15 | -6.60 | |
|  Harley-Yeo, Gareth | | | 2059 | WLS | 0.50 | 1 | 0.03 | 15 | 0.45 | |  Truman, Richard G | | | 2015 | ENG | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Pleasants, Allan J | | | 2079 | ENG | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Williamson, Kevin J | | | 2045 | ENG | 0.50 | 1 | 0.01 | 15 | 0.15 | |
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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