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Individual Calculations September 2017 |
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| Parker, Keith Total change: -41.20 | |   |
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| 104th British Championships Over 50 | Llandudno | ENG | 2017-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1921 | 1849 | 1.00 | 5 | -1.03 | 40 | -41.20 | |
|  Smith, Peter | | | 2062 | SCO | 0.00 | 1 | -0.23 | 40 | -9.20 | |  Tucker, David S | | | 2009 | ENG | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Livesey, R Nigel | | | 1797 | ENG | 0.50 | 1 | -0.07 | 40 | -2.80 | | | Clancy, Martin J | | | 1883 | ENG | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Kennedy, Craig | | | 1855 | SCO | 0.00 | 1 | -0.49 | 40 | -19.60 | |
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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