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Individual Calculations December 2019 |
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| Portheault, Benjamin Total change: -12.80 | |   |
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| Central London Chess Congress (Major Section) 2019 | London | ENG | 2019-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1682 | 1550 | 2.00 | 4 | 0.69 | 40 | 27.60 | |
|  Bussmann, John | | | 1745 | ENG | 0.00 | 1 | -0.25 | 40 | -10.00 | |  Juciute, Einora | | | 1734 | LTU | 0.50 | 1 | 0.24 | 40 | 9.60 | | | McKenna, John R | | | 1586 | ENG | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Sloan, Cecil | | | 1661 | USA | 1.00 | 1 | 0.65 | 40 | 26.00 | |
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) | | | | 2019/20 4NCL Div 4 Rounds 1 - 2 | Maidenhead | ENG | 2019-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1547 | 1550 | 0.00 | 2 | -1.01 | 40 | -40.40 | |
| | Fernando, Manel | | | 1476 | ENG | 0.00 | 1 | -0.60 | 40 | -24.00 | | | Beckett, Richard | | | 1618 | ENG | 0.00 | 1 | -0.41 | 40 | -16.40 | |
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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