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Individual Calculations January 2009 |
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| De Graaf, Arnoud Total change: -7.00 | |   |
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| 34th Guernsey International Open | Guernsey | GCI | 2008-10-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2017 | 1785 | 1.00 | 6 | -0.28 | 25 | -7.00 | |
|  Thurlow, Kevin | c | | 2062 | ENG | 0.50 | 1 | 0.33 | 25 | 8.25 | |  Simmons, Matthew | c | | 2067 | JCI | 0.00 | 1 | -0.16 | 25 | -4.00 | | | Westerkamp, Bert | | | 2070 | NED | 0.00 | 1 | -0.16 | 25 | -4.00 | | | Morcom, Huw | | | 1978 | WLS | 0.50 | 1 | 0.25 | 25 | 6.25 | | | Hickman, John | | | 1989 | ENG | 0.00 | 1 | -0.24 | 25 | -6.00 | | | Viviani, Primo | | | 1938 | SUI | 0.00 | 1 | -0.30 | 25 | -7.50 | |
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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