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Individual Calculations February 2013 |
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| Ratsma, Rosa Total change: 30.30 | |   |
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| Schaakfestival Groningen 2012 Open B | Groningen | NED | 2012-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1866 | 1791 | 4.50 | 6 | 2.02 | 15 | 30.30 | |
|  Dommisse, Cornelis | | | 1823 | NED | 0.50 | 1 | 0.04 | 15 | 0.60 | |  Den Hartog, Marijn | | | 1658 | NED | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Keetman, Maaike | | | 1813 | NED | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Dijkhuis, Sven | | | 1766 | NED | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Stavast, Dick | | | 2102 | NED | 0.50 | 1 | 0.36 | 15 | 5.40 | | | Zuiderweg, Edwin | | | 2034 | NED | 1.00 | 1 | 0.80 | 15 | 12.00 | |
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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