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Individual Calculations September 2017 |
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| Tucker, David S Total change: -31.60 | |   |
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| 104th British Championships Over 50 | Llandudno | ENG | 2017-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2003 | 2009 | 2.00 | 7 | -1.58 | 20 | -31.60 | |
|  Chandler, Cliff R | | | 2269 | ENG | 0.00 | 1 | -0.18 | 20 | -3.60 | |  Parker, Keith | | | 1849 | ENG | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Chapman, Terry Pd | f | | 2250 | ENG | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Goater, Kevin P | c | | 2128 | ENG | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Livesey, R Nigel | | | 1797 | ENG | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Shakespeare, John S | | | 1930 | WLS | 0.00 | 1 | -0.61 | 20 | -12.20 | | | Towers, Nigel S | | | 1795 | 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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