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Individual Calculations December 2017 |
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| Sonnis, Steve Total change: -14.80 | |   |
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| CCF DAYTIME CHESS 2017-18 NOVEMBER 2017 A | London | ENG | 2017-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1603 | 1662 | 1.00 | 3 | -0.74 | 20 | -14.80 | |
|  Davey, Adrian | | | 1698 | ENG | 0.00 | 1 | -0.45 | 20 | -9.00 | |  Norman, Nigel | | | 1588 | ENG | 0.50 | 1 | -0.10 | 20 | -2.00 | | | Clayton, David C | | | 1522 | ENG | 0.50 | 1 | -0.19 | 20 | -3.80 | |
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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