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Individual Calculations July 2017 |
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| Koelmans, Jan Willem Total change: -18.20 | |   |
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| BPB Limburg Open 2017 - Groep B | Maastricht | NED | 2017-06-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1908 | 1934 | 3.00 | 7 | -0.74 | 20 | -14.80 | |
|  Oosterman, Maarten Jan | | | 2003 | NED | 0.00 | 1 | -0.40 | 20 | -8.00 | |  Lammes, Pim | | | 1793 | NED | 1.00 | 1 | 0.31 | 20 | 6.20 | | | Verhoef, Ruud | | | 1847 | NED | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Snoeck, Rene | | | 1967 | NED | 0.50 | 1 | 0.05 | 20 | 1.00 | | | Porteman, Eric | | | 1881 | BEL | 0.50 | 1 | -0.07 | 20 | -1.40 | | | Van Diermen, Arie | | | 1937 | NED | 0.00 | 1 | -0.50 | 20 | -10.00 | | | Luimes, Arent | | | 1928 | NED | 0.50 | 1 | -0.01 | 20 | -0.20 | |
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) | | | | HSG Open 2017 Group B | Hilversum | NED | 2017-06-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1835 | 1934 | 3.00 | 5 | -0.17 | 20 | -3.40 | |
| | Land, Marc | | | 1786 | NED | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Froberg, Gert-Jan | | | 1864 | NED | 0.50 | 1 | -0.10 | 20 | -2.00 | | | Mulders, Rinze | | | 1882 | NED | 0.00 | 1 | -0.57 | 20 | -11.40 | | | Frijling, Jeroen | | | 1781 | NED | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Bettman, Jan | | | 1861 | NED | 0.50 | 1 | -0.10 | 20 | -2.00 | |
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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