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Individual Calculations September 2009 |
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| Van Brussel, Bert Total change: -7.05 | |   |
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| Intomart GfK Open 2009 - group B | Hilversum | NED | 2009-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1949 | 1929 | 2.50 | 6 | -0.36 | 15 | -5.40 | |
|  Jos, Ernst | | | 1909 | NED | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Van Tuyl, Wim | | | 1962 | NED | 0.00 | 1 | -0.45 | 15 | -6.75 | |  Burer, Audry | | | 1899 | NED | 0.50 | 1 | -0.04 | 15 | -0.60 | | | De Ruiter, Tom | | | 2151 | NED | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Weverling, Ferry | | | 1839 | NED | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Westerman, Henk | | | 1932 | NED | 1.00 | 1 | 0.50 | 15 | 7.50 | |
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) | | | | 3e Leiden Chess Tournament | Leiden | NED | 2009-07-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2024 | 1929 | 2.50 | 7 | -0.11 | 15 | -1.65 | |
| | Oei, Hway Ik | | | 2175 | NED | 0.50 | 1 | 0.31 | 15 | 4.65 | | | Glimmerveen, Martin | | | 2068 | NED | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Van Splunter, Arjen | | | 2052 | NED | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Braggaar, Pim | | | 2067 | NED | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Koes, Richard | | | 1950 | NED | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Snikkers, Naomi | | | 1818 | NED | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Kamps, Jacques | | | 2041 | NED | 0.00 | 1 | -0.35 | 15 | -5.25 | |
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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