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Individual Calculations May 2018 |
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| Pratley, Ian Total change: -7.00 | |   |
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| CCF WINTER CHESS LONG PLAY RESULTS APRIL A | London | ENG | 2018-04-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1629 | 1558 | 0.50 | 2 | -0.35 | 20 | -7.00 | |
|  George, Olufemi | | | 1824 | NGR | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Howes, David J | | | 1434 | ENG | 0.50 | 1 | -0.17 | 20 | -3.40 | |
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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