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Individual Calculations September 2019 |
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| Webster, Richard J Total change: -19.40 | |   |
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| 106th British Championships Over 50 | Torquay | ENG | 2019-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1973 | 1967 | 2.00 | 6 | -0.97 | 20 | -19.40 | |
|  Josse, Mark | | | 2209 | ENG | 0.00 | 1 | -0.20 | 20 | -4.00 | |  Goater, Kevin P | c | | 2089 | ENG | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Spanton, Tim R | | | 1900 | ENG | 0.50 | 1 | -0.09 | 20 | -1.80 | | | Clancy, Martin J | | | 1802 | ENG | 0.50 | 1 | -0.22 | 20 | -4.40 | | | Mashayekh, Majid | | | 1909 | ENG | 0.50 | 1 | -0.08 | 20 | -1.60 | | | McMahon, Paul | | | 1931 | ENG | 0.50 | 1 | -0.05 | 20 | -1.00 | |
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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