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Individual Calculations January 2009 |
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| Cummins, John Total change: -20.75 | |   |
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| 34th Guernsey International Open | Guernsey | GCI | 2008-10-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2002 | 1919 | 1.50 | 6 | -0.83 | 25 | -20.75 | |
|  Taylor, Mark | | | 2146 | ENG | 0.00 | 1 | -0.21 | 25 | -5.25 | |  Jamieson, Ian | | | 2013 | SCO | 0.50 | 1 | 0.13 | 25 | 3.25 | | | Fassaert, Desire | | | 2003 | NED | 0.50 | 1 | 0.12 | 25 | 3.00 | | | Van De Griendt, Monique | | | 2049 | NED | 0.50 | 1 | 0.18 | 25 | 4.50 | | | Kamps, Jacques | | | 2039 | NED | 0.00 | 1 | -0.34 | 25 | -8.50 | | | Reutimann, Hans | | | 1761 | SUI | 0.00 | 1 | -0.71 | 25 | -17.75 | |
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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