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Individual Calculations March 2011 |
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| Grashuis, Aldert-Jan Total change: -10.75 | |   |
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| Schaakfestival Groningen 2010 Open B | Groningen | NED | 2010-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1968 | 1932 | 3.00 | 6 | 0.29 | 25 | 7.25 | |
|  Van Der Veen, Anne | | | 1782 | NED | 1.00 | 1 | 0.30 | 25 | 7.50 | |  Mellema, Andries | | | 2139 | NED | 0.00 | 1 | -0.23 | 25 | -5.75 | | | Hummel, Joop | | | 1972 | NED | 0.50 | 1 | 0.06 | 25 | 1.50 | | | De Wit, Gerard | | | 1901 | NED | 1.00 | 1 | 0.46 | 25 | 11.50 | | | Wielenga, Wiebe | | | 2088 | NED | 0.50 | 1 | 0.21 | 25 | 5.25 | | | Thoma, Sophia | | | 1926 | NED | 0.00 | 1 | -0.51 | 25 | -12.75 | |
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) | | | NOTE: K factor changed | | Dutch Team Competition - 3A - round 5-6 2011 | Various | NED | 2011-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1858 | 1930 | 0.00 | 2 | -1.20 | 15 | -18.00 | |
| | Van Der Berg, Wessel | | | 1861 | NED | 0.00 | 1 | -0.60 | 15 | -9.00 | | | Viersma, Murk | | | 1855 | NED | 0.00 | 1 | -0.60 | 15 | -9.00 | |
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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