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Individual Calculations November 2017 |
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| Pratley, Ian Total change: 3.20 | |   |
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| CCF WINTER CHESS 2017-18 LONG PLAY OCTOBER 2017 | London | ENG | 2017-10-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1584 | 1552 | 2.00 | 4 | 0.16 | 20 | 3.20 | |
|  Howes, David J | | | 1498 | ENG | 0.50 | 1 | -0.08 | 20 | -1.60 | | | Wong, Cheuk Nam | | | 1573 | ENG | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Bloom, Paul | | | 1577 | ENG | 0.50 | 1 | 0.03 | 20 | 0.60 | |  Akeya-Price, Robert A | | | 1686 | ENG | 0.50 | 1 | 0.18 | 20 | 3.60 | |
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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