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Individual Calculations March 2010 |
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| Verwoert, Jef Total change: -16.65 | |   |
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| Schaakfestival Groningen 2009 Open B | Groningen | NED | 2009-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1988 | 2061 | 3.50 | 6 | -0.08 | 15 | -1.20 | |
|  Pouw, Marcel | | | 1886 | NED | 1.00 | 1 | 0.27 | 15 | 4.05 | |  Maris, Ivo | | | 1924 | NED | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Zuiderweg, Edwin | | | 2014 | NED | 0.50 | 1 | -0.07 | 15 | -1.05 | | | Mellema, Andries | | | 2117 | NED | 0.00 | 1 | -0.42 | 15 | -6.30 | | | Wubs, Harry | | | 1956 | NED | 0.50 | 1 | -0.14 | 15 | -2.10 | | | Ypma, Peter | | | 2032 | NED | 0.50 | 1 | -0.04 | 15 | -0.60 | |
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) | | | | Klasse 3C Round 5-6 - Dutch Team Competition | Various | NED | 2010-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2045 | 2057 | 0.00 | 2 | -1.03 | 15 | -15.45 | |
| | Van Zetten, Maarten | | | 1991 | NED | 0.00 | 1 | -0.59 | 15 | -8.85 | | | Hogenhout, Ruben | | | 2099 | NED | 0.00 | 1 | -0.44 | 15 | -6.60 | |
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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