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Individual Calculations September 2009 |
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| Roelofs, Rik Total change: 0.00 | |   |
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| Intomart GfK Open 2009 - group B | Hilversum | NED | 2009-06-28 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1986 | 0 | 4.00 | 8 | 0.00 | 1986 | | 0.00 | |
|  Van De Peut, Aart | | | 1990 | NED | 0.50 | 1 | 0.00 | | 0.00 | |  Kastelein, Gerard | | | 1895 | NED | 0.50 | 1 | 0.00 | | 0.00 | | | Burer, Audry | | | 1899 | NED | 1.00 | 1 | 0.00 | | 0.00 | | | Jos, Ernst | | | 1909 | NED | 0.50 | 1 | 0.00 | | 0.00 | | | Veldhuysen, Klaas | | | 2013 | NED | 0.00 | 1 | 0.00 | | 0.00 | | | Van De Groep, William | | | 2025 | NED | 1.00 | 1 | 0.00 | | 0.00 | | | Van Den Bergh, Ben | | | 2003 | NED | 0.50 | 1 | 0.00 | | 0.00 | | | De Ruiter, Tom | | | 2151 | NED | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | | | Dutch Open - Reserve A | Dieren | NED | 2009-07-21 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1888 | 0 | 1.00 | 5 | 0.00 | 1648 | | 0.00 | |
| | Gielen, Wim | | | 1917 | NED | 0.00 | 1 | 0.00 | | 0.00 | | | Reinders, Joan | | | 1874 | NED | 0.00 | 1 | 0.00 | | 0.00 | | | Gunther, Marcella | | | 1857 | NED | 0.00 | 1 | 0.00 | | 0.00 | | | Wubs, Harm | | | 1976 | NED | 1.00 | 1 | 0.00 | | 0.00 | | | Snikkers, Naomi | | | 1818 | NED | 0.00 | 1 | 0.00 | | 0.00 | |
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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