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Individual Calculations March 2010 |
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| Weggen, Jeroen Total change: 70.75 | |   |
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| Schaakfestival Groningen 2009 Open B | Groningen | NED | 2009-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1988 | 1847 | 6.00 | 9 | 3.15 | 25 | 78.75 | |
|  Tromp, Pieter | | | 2010 | NED | 1.00 | 1 | 0.72 | 25 | 18.00 | | | Groot De, Ymar | | | 2001 | NED | 1.00 | 1 | 0.71 | 25 | 17.75 | |  Slagter, Ruben | | | 2029 | NED | 0.50 | 1 | 0.24 | 25 | 6.00 | | | Vermeulen, Frans | | | 1912 | NED | 0.50 | 1 | 0.09 | 25 | 2.25 | | | Maris, Ivo | | | 1924 | NED | 1.00 | 1 | 0.61 | 25 | 15.25 | | | Mostertman, Johan | | | 1773 | NED | 1.00 | 1 | 0.40 | 25 | 10.00 | | | Jelic, Bruno | | | 2098 | NED | 1.00 | 1 | 0.81 | 25 | 20.25 | | | Mellema, Andries | | | 2117 | NED | 0.00 | 1 | -0.17 | 25 | -4.25 | | | Ypma, Peter | | | 2032 | NED | 0.00 | 1 | -0.26 | 25 | -6.50 | |
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 2A Round 5-6 - Dutch Team Competition | Various | NED | 2010-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2154 | 1868 | 0.00 | 2 | -0.32 | 25 | -8.00 | |
| | Lambrechts, Koen | | | 2111 | NED | 0.00 | 1 | -0.20 | 25 | -5.00 | | | Meurs, Tom | | | 2197 | NED | 0.00 | 1 | -0.12 | 25 | -3.00 | |
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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