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Individual Calculations December 2015 |
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| Di-Vetta, Andrew Total change: -16.80 | |   |
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| 48th West Wales Championship | Swansea | WLS | 2015-11-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1747 | 1587 | 0.50 | 3 | -0.42 | 40 | -16.80 | |
|  Guy, David | | | 1887 | WLS | 0.00 | 1 | -0.15 | 40 | -6.00 | |  Buttell, David | | | 1805 | WLS | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Williams, David J | | | 1550 | WLS | 0.50 | 1 | -0.05 | 40 | -2.00 | |
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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