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Individual Calculations December 2019 |
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| Waterfield, John W Total change: 10.00 | |   |
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| South Wales Autumn Open 2019 | Newport | WLS | 2019-11-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2018 | 1921 | 2.50 | 5 | 0.50 | 20 | 10.00 | |
|  Payan, Juan C | | | 1791 | USA | 1.00 | 1 | 0.32 | 20 | 6.40 | |  Kozusek, Daniel | f | | 2321 * | CZE | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Harris, Calum | | | 1803 | WLS | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Saunders, Walter N. R. | | | 1994 | WLS | 0.50 | 1 | 0.10 | 20 | 2.00 | | | Varley, Peter | f | | 2181 | WLS | 0.00 | 1 | -0.18 | 20 | -3.60 | | | * 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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