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Individual Calculations February 2018 |
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| Vorstermans, Peter Total change: 9.60 | |   |
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| Tata Steel Weekendvierkampen 2018 | Wijk aan Zee | NED | 2018-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2013 | 2019 | 2.00 | 3 | 0.48 | 20 | 9.60 | |
|  Braggaar, Wessel | | | 1987 | NED | 0.50 | 1 | -0.04 | 20 | -0.80 | | | Bik, Wouter | | | 1993 | NED | 1.00 | 1 | 0.46 | 20 | 9.20 | |  Lessmann, Francis | | | 2060 | NED | 0.50 | 1 | 0.06 | 20 | 1.20 | |
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) | | |
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