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Individual Calculations April 2009 |
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| Roufs, Gerard Total change: 23.25 | |   |
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| 2D - r 4-5 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2176 | 1932 | 0.00 | 1 | -0.20 | 25 | -5.00 | |
|  Montignies, Rainer | | | 2176 | GER | 0.00 | 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) | | | | 4E - Corus Chess Tournament - Tienkampen | Wijk aan Zee | NED | 2009-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1893 | 1932 | 5.00 | 7 | 1.13 | 25 | 28.25 | |
|  De Vos, Willem | | | 1902 | NED | 1.00 | 1 | 0.46 | 25 | 11.50 | | | Adriaanse, Tom | | | 1975 | NED | 0.50 | 1 | 0.06 | 25 | 1.50 | | | Hartgers, Leendert | | | 1885 | NED | 1.00 | 1 | 0.43 | 25 | 10.75 | | | Veerman, Jan | | | 1947 | NED | 0.50 | 1 | 0.02 | 25 | 0.50 | | | Gattuso, Christophe | | | 1871 | FRA | 1.00 | 1 | 0.42 | 25 | 10.50 | | | Van Dam, Jtm | | | 1805 | NED | 1.00 | 1 | 0.33 | 25 | 8.25 | | | Van Meggelen, Abraham | | | 1864 | NED | 0.00 | 1 | -0.59 | 25 | -14.75 | |
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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