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Individual Calculations February 2015 |
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| Westerduin, Philip Total change: -3.40 | |   |
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| Tata Steel Chess Tournament 2015 - W3Q | Wijk aan Zee | NED | 2015-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2023 | 2066 | 1.50 | 3 | -0.17 | 20 | -3.40 | |
|  Bergmans, Dirk | | | 1990 | NED | 0.50 | 1 | -0.10 | 20 | -2.00 | |  Stork, Ornett | | | 2101 | NED | 0.00 | 1 | -0.45 | 20 | -9.00 | | | Hazenberg, Frans | | | 1978 | NED | 1.00 | 1 | 0.38 | 20 | 7.60 | |
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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