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Individual Calculations February 2020 |
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| Gray, David Total change: 28.40 | |   |
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| CCF LP Club Championships 2019-2020 JAN 2020 R17-20 | London | ENG | 2020-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1251 | 1119 | 1.50 | 2 | 0.85 | 20 | 17.00 | |
|  Collins, Michael E | | | 1207 | ENG | 0.50 | 1 | 0.12 | 20 | 2.40 | |  Selby, Keith | | | 1294 | ENG | 1.00 | 1 | 0.73 | 20 | 14.60 | |
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) | | | | CCF Daytime Chess - Spring 2020 Jan 2020 | London | ENG | 2020-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1375 | 1119 | 1.00 | 2 | 0.57 | 20 | 11.40 | |
| | Di Mattia, Luciano Dm | | | 1519 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Aburrow, John A | | | 1231 | ENG | 1.00 | 1 | 0.65 | 20 | 13.00 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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