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Individual Calculations February 2013 |
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| Van Der Werff, Frank Total change: 13.20 | |   |
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| Schaakfestival Groningen 2012 Open B | Groningen | NED | 2012-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1929 | 1943 | 4.50 | 7 | 0.88 | 15 | 13.20 | |
|  Karsdorp, Nico | | | 1879 | NED | 1.00 | 1 | 0.41 | 15 | 6.15 | |  Vlaming, Halana | | | 1748 | NED | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Stavast, Dick | | | 2102 | NED | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Dijkhuis, Sven | | | 1766 | NED | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Wielenga, Wiebe | | | 2048 | NED | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Hummel, Joop | | | 2003 | NED | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Dijkstra, Arjan | | | 1957 | 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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