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Individual Calculations February 2013 |
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| Van Velzen, Martin Total change: -11.70 | |   |
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| Schaakfestival Groningen 2012 Open B | Groningen | NED | 2012-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1861 | 1893 | 3.00 | 7 | -0.78 | 15 | -11.70 | |
|  Westerlaan, Sander | | | 2026 | NED | 0.00 | 1 | -0.32 | 15 | -4.80 | |  Leentjens, Gilbert | | | 1853 | NED | 0.00 | 1 | -0.56 | 15 | -8.40 | | | Den Hartog, Marijn | | | 1658 | NED | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Wielenga, Wiebe | | | 2048 | NED | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Janssen, Eddie | | | 1752 | NED | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Pompstra, Henk | | | 1811 | NED | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Karsdorp, Nico | | | 1879 | NED | 0.50 | 1 | -0.02 | 15 | -0.30 | |
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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