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Individual Calculations September 2017 |
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| De Coverly, Roger D Total change: -37.20 | |   |
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| 104th British Championships Major Open | Llandudno | ENG | 2017-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1836 | 1971 | 5.50 | 9 | -0.49 | 20 | -9.80 | |
|  Price, Gwilym T | | | 1776 | ENG | 0.50 | 1 | -0.25 | 20 | -5.00 | |  Modi, Kishan J | | | 1725 | ENG | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Ratnesan, Ranesh | | | 1845 | ENG | 0.00 | 1 | -0.67 | 20 | -13.40 | | | Robertson, Jim | | | 1633 | SCO | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Somton, Anita | | | 1705 | ENG | 1.00 | 1 | 0.18 | 20 | 3.60 | | | Miller, Dominic | | | 2103 | ENG | 0.50 | 1 | 0.18 | 20 | 3.60 | | | Pollack, Oscar | | | 1871 | ENG | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Blake, J Morgan | | | 1833 | ENG | 0.50 | 1 | -0.19 | 20 | -3.80 | | | Sugden, John N | | | 2037 | ENG | 0.00 | 1 | -0.41 | 20 | -8.20 | |
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) | | | | 53rd Berks & Bucks Chess Congress Championship | Maidenhead | ENG | 2017-08-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1971 | 1954 | 1.00 | 5 | -1.37 | 20 | -27.40 | |
| | Peters, Stephen G | | | 2073 | ENG | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Villiers, Thomas | | | 2122 | ENG | 0.00 | 1 | -0.28 | 20 | -5.60 | | | Cole, James | | | 1950 | ENG | 0.00 | 1 | -0.51 | 20 | -10.20 | | | Akeya-Price, Robert A | | | 1724 | ENG | 0.00 | 1 | -0.79 | 20 | -15.80 | | | Nelson, Omowale A | | | 1987 | JAM | 1.00 | 1 | 0.55 | 20 | 11.00 | |
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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