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Individual Calculations February 2019 |
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| Pratley, Ian Total change: -3.60 | |   |
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| CCF Winter Chess Club LP Matches Stage 6 | London | ENG | 2019-01-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1741 | 1564 | 1.00 | 4 | -0.18 | 20 | -3.60 | |
|  Davis, Richard | | | 1550 | ENG | 0.50 | 1 | -0.02 | 20 | -0.40 | |  Rosenbach, Martin | | | 1724 | ENG | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Heavens, Alan F | | | 1724 | ENG | 0.50 | 1 | 0.21 | 20 | 4.20 | | | Gray, Mark S | | | 1964 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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