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Individual Calculations February 2023 |
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| Ashcroft, Graham J Total change: -15.40 | |   |
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| London Christmas Chess Congress - Major | London | ENG | 2022-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1660 | 1805 | 3.00 | 5 | -0.37 | 20 | -7.40 | |
|  Colter, Nigel | | | 1671 | ENG | 0.00 | 1 | -0.68 | 20 | -13.60 | |  Kamath, Raghu | | | 1758 | ENG | 1.00 | 1 | 0.43 | 20 | 8.60 | | | Lim, Wei Xinq Sean | | | 1733 | MAS | 1.00 | 1 | 0.40 | 20 | 8.00 | | | Rida, Ruqayyah | | | 1414 | ENG | 0.00 | 1 | -0.91 | 20 | -18.20 | | | Cawston, M John | | | 1723 | ENG | 1.00 | 1 | 0.39 | 20 | 7.80 | |
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) | | | | 29th 4NCL Congress Major | Harrogate | ENG | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1641 | 1805 | 1.00 | 2 | -0.40 | 20 | -8.00 | |
| | Williamson, Graham A | | | 1762 | SCO | 0.00 | 1 | -0.56 | 20 | -11.20 | | | Lawrence, Spencer | | | 1520 | ENG | 1.00 | 1 | 0.16 | 20 | 3.20 | |
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) | | |
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