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Individual Calculations July 2009 |
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| Achtergaele, Koen Total change: 3.90 | |   |
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| Belgian National Team Championship 2008-2009 | Various | BEL | 2008-10-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1958 | 2017 | 2.00 | 3 | 0.26 | 15 | 3.90 | |
|  Verhaeren, Gertjan | | | 1911 | BEL | 0.00 | 1 | -0.64 | 15 | -9.60 | |  Bossuyt, Herman | | | 1917 | BEL | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Van Rij, Gert | | | 2047 | NED | 1.00 | 1 | 0.54 | 15 | 8.10 | |
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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