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Individual Calculations April 2009 |
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| Buyten, Arno Total change: -3.75 | |   |
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| 2B - r 4-5 - Dutch Team Competition | Various | NED | 2008-09-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1917 | 2112 | 0.50 | 1 | -0.25 | 15 | -3.75 | |
|  Van Den Berg, Jeroen | | | 1917 | NED | 0.50 | 1 | -0.25 | 15 | -3.75 | |
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) | | | | 3H - Corus Chess Tournament - Tienkampen | Wijk aan Zee | NED | 2009-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2015 | 2111 | 5.00 | 8 | 0.00 | 15 | 0.00 | |
| | Oosting, Rob | | | 2000 | NED | 0.00 | 1 | -0.65 | 15 | -9.75 | |  Mostertman, Loek G | | | 2073 | NED | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Holsteijn, Gerrit | | | 2033 | NED | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Van Manen, Leonardo | | | 2138 | NED | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Jorritsma, Stefan | | | 1866 | NED | 0.50 | 1 | -0.30 | 15 | -4.50 | | | Van Der Maat, Niek | | | 1961 | NED | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Cerasi, Umberto | | | 2029 | ITA | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Pauw, Martijn | | | 2020 | NED | 1.00 | 1 | 0.38 | 15 | 5.70 | |
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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