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Individual Calculations April 2009 |
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| Bollaart, Jeroen Total change: -7.75 | |   |
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| 4C - Corus Chess Tournament - Tienkampen | Wijk aan Zee | NED | 2009-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1874 | 1911 | 3.00 | 6 | -0.31 | 25 | -7.75 | |
|  Van Der Bent, Gideon | | | 1966 | NED | 0.50 | 1 | 0.08 | 25 | 2.00 | |  De Visser, Arno | | | 1888 | NED | 0.00 | 1 | -0.53 | 25 | -13.25 | | | Lemmen, Gerrit | | | 1877 | NED | 0.00 | 1 | -0.55 | 25 | -13.75 | | | Slikker, Dirk | | | 1897 | NED | 1.00 | 1 | 0.48 | 25 | 12.00 | | | Visschedijk, Theo | | | 1848 | NED | 1.00 | 1 | 0.41 | 25 | 10.25 | | | Gisbert, Alex | | | 1765 | ESP | 0.50 | 1 | -0.20 | 25 | -5.00 | |
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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