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Individual Calculations March 2010 |
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| Van Der Berg, Wessel Total change: -36.75 | |   |
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| Schaakfestival Groningen 2009 Mini A | Groningen | NED | 2009-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2061 | 1948 | 0.50 | 4 | -0.91 | 25 | -22.75 | |
|  Prakken, Gerrit | f | | 2161 | NED | 0.00 | 1 | -0.23 | 25 | -5.75 | |  Boersma, Jan | | | 2119 | NED | 0.50 | 1 | 0.23 | 25 | 5.75 | | | Dongen Van, Rob | | | 1944 | NED | 0.00 | 1 | -0.51 | 25 | -12.75 | | | Walinga, Eric Jan | | | 2019 | NED | 0.00 | 1 | -0.40 | 25 | -10.00 | |
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) | | | | Klasse 3A Round 5-6 - Dutch Team Competition | Various | NED | 2010-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1906 | 1948 | 0.00 | 1 | -0.56 | 25 | -14.00 | |
| | Drijver, Evert | | | 1906 | NED | 0.00 | 1 | -0.56 | 25 | -14.00 | |
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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