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Individual Calculations November 2017 |
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| Purdon, Colin Total change: 10.60 | |   |
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| 43rd Guernsey International Chess Festival - Open | Guernsey | GCI | 2017-10-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1998 | 2047 | 4.50 | 7 | 0.53 | 20 | 10.60 | |
|  Hickman, John E | | | 1910 | ENG | 1.00 | 1 | 0.32 | 20 | 6.40 | |  Rowe, Oliver | | | 1647 * | GCI | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Hillarp Persson, Tiger | g | | 2447 * | SWE | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Hewson, Brian W R | | | 1995 | ENG | 0.50 | 1 | -0.07 | 20 | -1.40 | | | Campbell, Ian | | | 1990 | ENG | 0.50 | 1 | -0.08 | 20 | -1.60 | | | Van Dijk, Bram | | | 1999 | NED | 0.50 | 1 | -0.07 | 20 | -1.40 | | | Kirby, Peter J. | c | | 1996 | GCI | 1.00 | 1 | 0.43 | 20 | 8.60 | | | * 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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