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Individual Calculations January 2019 |
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| Lettington, David Total change: -21.60 | |   |
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| 10th CSC London Chess Classic: Weekend Under 1825 | London | ENG | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1545 | 1659 | 1.50 | 4 | -1.08 | 20 | -21.60 | |
|  Thatte, Nandinee | | | 1411 | ENG | 1.00 | 1 | 0.19 | 20 | 3.80 | |  Matthews, Gabriel | | | 1761 | IRL | 0.00 | 1 | -0.36 | 20 | -7.20 | | | Abedian, Mohsen | | | 1567 | ENG | 0.00 | 1 | -0.63 | 20 | -12.60 | | | Cordova Lopez, Diego Anton | | | 1440 | ENG | 0.50 | 1 | -0.28 | 20 | -5.60 | |
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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