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Individual Calculations January 2011 |
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| Blijstra, Wim Total change: 16.25 | |   |
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| Aruba Chess Challenge 2010 | Sta Cruz | ARU | 2010-11-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2007 | 2223 | 4.50 | 5 | 0.65 | 25 | 16.25 | |
|  Raphael, Christopher | | | 1908 | TRI | 1.00 | 1 | 0.14 | 25 | 3.50 | |  Pesqueira, Jose | | | 1982 | ARU | 1.00 | 1 | 0.20 | 25 | 5.00 | | | Roose, Alex | | | 2065 | AHO | 1.00 | 1 | 0.29 | 25 | 7.25 | | | Dekker, Marvin | | | 2076 | AHO | 1.00 | 1 | 0.30 | 25 | 7.50 | | | Maduro, Sherman | | | 2006 | AHO | 0.50 | 1 | -0.28 | 25 | -7.00 | |
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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