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Individual Calculations April 2009 |
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| Ypma, Peter Total change: 14.85 | |   |
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| 3G - r 4-5 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2181 | 1926 | 0.50 | 1 | 0.31 | 15 | 4.65 | |
|  Driessen, Marcus | | | 2181 | NED | 0.50 | 1 | 0.31 | 15 | 4.65 | |
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) | | | | Schaakfestival Groningen - Groep B | Groningen | NED | 2008-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2039 | 1996 | 2.00 | 3 | 0.68 | 15 | 10.20 | |
|  Kamali, Mehran | | | 2035 | NED | 1.00 | 1 | 0.55 | 15 | 8.25 | | | Groot, Simon | | | 2008 | NED | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Jelic, Bruno | | | 2075 | NED | 0.00 | 1 | -0.39 | 15 | -5.85 | |
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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