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Individual Calculations July 2009 |
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| Maris, Ivo Total change: 2.50 | |   |
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| NOSBO Kampioenschap 2009 | Groningen | NED | 2009-02-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2167 | 1964 | 1.00 | 4 | -0.02 | 25 | -0.50 | |
|  Hoeksema, Erik | m | | 2314 | NED | 0.50 | 1 | 0.39 | 25 | 9.75 | | | Heller, Milan | | | 2035 | NED | 0.00 | 1 | -0.40 | 25 | -10.00 | |  Wielenga, Wiebe | | | 2098 | NED | 0.50 | 1 | 0.18 | 25 | 4.50 | | | Cako, Laszlo | | | 2220 | NED | 0.00 | 1 | -0.19 | 25 | -4.75 | |
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) | | | | NKJ 2009 - C Jeugd | Venlo | NED | 2009-04-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1982 | 1964 | 2.50 | 5 | 0.12 | 25 | 3.00 | |
| | Van Overdam, Julian | | | 2058 | NED | 0.00 | 1 | -0.37 | 25 | -9.25 | | | Lentjes, Noud | | | 1903 | NED | 1.00 | 1 | 0.42 | 25 | 10.50 | | | Bijlsma, Nick | | | 1952 | NED | 0.50 | 1 | -0.02 | 25 | -0.50 | | | Vereggen, Lars | | | 1989 | NED | 1.00 | 1 | 0.53 | 25 | 13.25 | | | Beukema, Stefan | | | 2009 | NED | 0.00 | 1 | -0.44 | 25 | -11.00 | |
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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