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Individual Calculations April 2009 |
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| Costello, Colin Total change: 9.90 | |   |
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| Schaakfestival Groningen - Compact A | Groningen | NED | 2008-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2090 | 2029 | 3.00 | 5 | 0.91 | 15 | 13.65 | |
|  Stavast, Dick | | | 1960 | NED | 0.50 | 1 | -0.10 | 15 | -1.50 | |  Groenewold, Jan Joris | | | 2106 | NED | 1.00 | 1 | 0.61 | 15 | 9.15 | | | Schipper, Rijk | | | 2141 | NED | 0.50 | 1 | 0.15 | 15 | 2.25 | | | Bodicker, Rob | | | 2100 | NED | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Van `t Hof, Eric | c | | 2141 | NED | 0.00 | 1 | -0.35 | 15 | -5.25 | |
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) | | | | 2.Pfalz Open | Neustadt a.d. Weinstrasse | GER | 2009-02-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2171 | 2029 | 2.00 | 7 | -0.25 | 15 | -3.75 | |
| | Casper, Thomas | m | | 2379 | GER | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Knitl, Anton | | | 2197 | GER | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Tennstedt, Andreas, Dr. | | | 2194 | GER | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Lantzsch, Christian | | | 2190 | GER | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Schaefer, Michael | | | 2183 | GER | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Maahs, Erich | | | 2180 | GER | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Korn, Thomas | | | 1877 | GER | 1.00 | 1 | 0.30 | 15 | 4.50 | |
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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