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Individual Calculations September 2009 |
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| De Jong, Siegbert Total change: 0.00 | |   |
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| Dutch Open - Reserve A | Dieren | NED | 2009-07-21 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1960 | 0 | 4.00 | 7 | 0.00 | 1973 | | 0.00 | |
|  Verstraate, Bjorn | | | 1898 | NED | 1.00 | 1 | 0.00 | | 0.00 | | | Noordkamp, Wouter | | | 2013 | NED | 0.50 | 1 | 0.00 | | 0.00 | |  Scholten, Karel | | | 1967 | NED | 1.00 | 1 | 0.00 | | 0.00 | | | Swinkels, Maurice | | | 1976 | NED | 0.00 | 1 | 0.00 | | 0.00 | | | Thoma, Sophia | | | 1830 | NED | 0.50 | 1 | 0.00 | | 0.00 | | | Belle, Erika | | wm | 2019 | NED | 1.00 | 1 | 0.00 | | 0.00 | | | Veltman, Anne | | | 2020 | 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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