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Individual Calculations July 2019 |
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| Cetens, Edward Total change: -21.60 | |   |
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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 |
| 1988 | 1850 | 1.50 | 5 | -0.08 | 20 | -1.60 | |
|  Myall, Ivan J | | | 2005 | ENG | 0.50 | 1 | 0.21 | 20 | 4.20 | |  Dempster, Dave | | | 1985 | AUS | 0.50 | 1 | 0.18 | 20 | 3.60 | | | Hutchinson, Norman A | | | 1995 | ENG | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Moore, Geoffrey R | | | 1979 | ENG | 0.00 | 1 | -0.33 | 20 | -6.60 | | | De Coverly, Roger D | | | 1977 | ENG | 0.50 | 1 | 0.17 | 20 | 3.40 | |
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) | | | | 13th Steve Boniface Memorial Congress Open | Bristol | ENG | 2019-06-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1959 | 1850 | 0.50 | 4 | -1.00 | 20 | -20.00 | |
| | Makkar, Rajat | c | | 2122 | FRA | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Slade, Theodore | | | 2125 | ENG | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Juciute, Einora | | | 1741 | LTU | 0.00 | 1 | -0.65 | 20 | -13.00 | | | Cizek, Ondrej | | | 1846 | CZE | 0.50 | 1 | -0.01 | 20 | -0.20 | |
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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