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Individual Calculations September 2009 |
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| Mostertman, Johan Total change: 40.50 | |   |
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| Atlantistoernooi 2009 Tienkamp D | Groningen | NED | 2009-07-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1903 | 1732 | 1.50 | 3 | 0.65 | 25 | 16.25 | |
|  Anne, Van Der Veen | | | 1787 | NED | 0.00 | 1 | -0.42 | 25 | -10.50 | |  Gerard, De Wit | | | 2005 | NED | 0.50 | 1 | 0.33 | 25 | 8.25 | | | Marcel, Pouw | | | 1918 | NED | 1.00 | 1 | 0.74 | 25 | 18.50 | |
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) | | | | Dutch Open - Reserve A | Dieren | NED | 2009-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1921 | 1732 | 2.00 | 4 | 0.97 | 25 | 24.25 | |
| | Schilt, Kees-Jan | | | 1978 | NED | 0.00 | 1 | -0.19 | 25 | -4.75 | | | Dijkstra, Maarten | | | 1897 | NED | 0.00 | 1 | -0.28 | 25 | -7.00 | | | Verkruissen, Robert | | | 1979 | NED | 1.00 | 1 | 0.81 | 25 | 20.25 | | | Thoma, Sophia | | | 1830 | NED | 1.00 | 1 | 0.63 | 25 | 15.75 | |
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) | | |
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