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Individual Calculations December 2017 |
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| Villiers, Thomas Total change: -21.20 | |   |
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| 2017 Central London Chess Congress (Open Section) | London | ENG | 2017-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2013 | 2157 | 1.50 | 3 | -0.58 | 20 | -11.60 | |
|  Grigoryan, Meri | | wf | 2034 | ENG | 0.00 | 1 | -0.67 | 20 | -13.40 | |  Bennett, John M | | | 1993 | ENG | 0.50 | 1 | -0.22 | 20 | -4.40 | | | Cannon, Richard J | | | 2012 | ENG | 1.00 | 1 | 0.31 | 20 | 6.20 | |
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) | | | | 2017/18 4NCL Division 3 South Rounds 1-2 | Reading | ENG | 2017-11-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1970 | 2157 | 1.00 | 2 | -0.48 | 20 | -9.60 | |
| | Adams, Mark | | | 1925 | WLS | 0.50 | 1 | -0.29 | 20 | -5.80 | | | Chan, Nevil | | | 2015 | ENG | 0.50 | 1 | -0.19 | 20 | -3.80 | |
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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