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Individual Calculations July 2019 |
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| De Coverly, Roger D Total change: -30.80 | |   |
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| East Anglian Chess Union Congress Open 2019 | Newmarket | ENG | 2019-05-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1992 | 1977 | 0.50 | 4 | -1.54 | 20 | -30.80 | |
|  Arkell, Keith C | g | | 2377 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Forster, Matthew | | | 1861 | ENG | 0.00 | 1 | -0.66 | 20 | -13.20 | | | Spanton, Tim R | | | 1880 | ENG | 0.00 | 1 | -0.63 | 20 | -12.60 | | | Cetens, Edward | | | 1850 | CZE | 0.50 | 1 | -0.17 | 20 | -3.40 | | | * 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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