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Individual Calculations February 2020 |
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| De Boer, Ruurd Total change: -6.20 | |   |
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| Tata Steel Weekendvierkampen 2020 | Wijk aan Zee | NED | 2020-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1900 | 1818 | 1.00 | 2 | 0.22 | 20 | 4.40 | |
|  Van De Laar, John | | | 1908 | NED | 1.00 | 1 | 0.62 | 20 | 12.40 | |  Gunther, Marcella | | | 1892 | NED | 0.00 | 1 | -0.40 | 20 | -8.00 | |
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) | | | | Tata Steel Dagvierkampen 2020 | Wijk aan Zee | NED | 2020-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1812 | 1818 | 1.00 | 3 | -0.53 | 20 | -10.60 | |
| | Andersen, Niels Erik | | | 1886 | DEN | 0.50 | 1 | 0.09 | 20 | 1.80 | | | Willemsen, Lourens | | | 1733 | NED | 0.00 | 1 | -0.62 | 20 | -12.40 | | | Wolters, Vincent | | | 1817 | NED | 0.50 | 1 | 0.00 | 20 | 0.00 | |
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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