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Individual Calculations September 2017 |
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| Towers, Nigel S Total change: 1.80 | |   |
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| 104th British Championships Over 50 | Llandudno | ENG | 2017-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1972 | 1795 | 2.00 | 7 | 0.09 | 20 | 1.80 | |
|  Peacock, Malcolm R | | | 2051 | ENG | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Phillips, Owen S | | | 1933 | ENG | 0.50 | 1 | 0.19 | 20 | 3.80 | |  Clancy, Martin J | | | 1883 | ENG | 1.00 | 1 | 0.62 | 20 | 12.40 | | | Lowick Higgie, Charles | | | 1918 | WLS | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Morris, Gareth L | | | 2062 | WLS | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Clucas, Reg P | | | 1950 | ENG | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Tucker, David S | | | 2009 | ENG | 0.50 | 1 | 0.27 | 20 | 5.40 | |
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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