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Individual Calculations February 2015 |
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| Schoehuijs, Erik Total change: 25.40 | |   |
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| Schaakfestival Groningen 2014 Open A | Groningen | NED | 2014-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2312 | 2125 | 3.50 | 9 | 1.14 | 20 | 22.80 | |
|  Bulmaga, Irina | m | wg | 2392 | ROU | 0.50 | 1 | 0.32 | 20 | 6.40 | |  Beukema, Stefan | f | | 2364 | BEL | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Simonian, Tigran | m | | 2406 | ARM | 0.50 | 1 | 0.34 | 20 | 6.80 | | | Offringa, Joost | | | 2226 | NED | 1.00 | 1 | 0.64 | 20 | 12.80 | | | Vos, Tjark | | | 2173 | AHO | 1.00 | 1 | 0.57 | 20 | 11.40 | | | Berkovich, Mark A | m | | 2362 | ISR | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Wacker, Peter | f | | 2305 | GER | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Salov, Sergej | m | | 2256 | GER | 0.50 | 1 | 0.18 | 20 | 3.60 | | | De Jong, Migchiel | m | | 2320 | NED | 0.00 | 1 | -0.25 | 20 | -5.00 | |
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) | | | | Tata Steel Chess Tournament 2015 - D1B | Wijk aan Zee | NED | 2015-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2176 | 2135 | 2.50 | 3 | 1.17 | 20 | 23.40 | |
| | Ratsma, Rosa | | | 2154 | NED | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Zult, Daan | | | 2248 | NED | 1.00 | 1 | 0.65 | 20 | 13.00 | | | Janse, Paul | | | 2126 | NED | 0.50 | 1 | -0.01 | 20 | -0.20 | |
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) | | | | Tata Steel Chess Tournament 2015 - T2A | Wijk aan Zee | NED | 2015-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2131 | 2135 | 3.50 | 9 | -1.04 | 20 | -20.80 | |
| | Stap, Kees | | | 2145 | NED | 1.00 | 1 | 0.51 | 20 | 10.20 | | | Vrancken, Gilbert | | | 2221 | NED | 0.00 | 1 | -0.38 | 20 | -7.60 | | | Blanchard, Jack | | | 2181 | NED | 0.50 | 1 | 0.06 | 20 | 1.20 | | | Pauw, Martijn | | | 2045 | NED | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Schroer, Marcel | | | 2164 | NED | 0.50 | 1 | 0.04 | 20 | 0.80 | | | Den Hartog, Marijn | | | 2186 | NED | 0.00 | 1 | -0.43 | 20 | -8.60 | | | Haselhorst, Helmut | | | 2101 | GER | 1.00 | 1 | 0.45 | 20 | 9.00 | | | Heemskerk, Wim | f | | 2169 | NED | 0.00 | 1 | -0.45 | 20 | -9.00 | | | Van Den Bergh, Ben | | | 1967 | NED | 0.00 | 1 | -0.72 | 20 | -14.40 | |
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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