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Individual Calculations February 2019 |
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| Ephraim, Olaf Total change: 8.40 | |   |
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| Tata Steel Chess Tournament 2018 - Weekendvierkampen | Wijk aan Zee | NED | 2019-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1937 | 2016 | 1.50 | 3 | -0.32 | 20 | -6.40 | |
|  Meijer, Robbert | | | 1882 | NED | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Hoekstra, Peter | | | 2005 | NED | 0.00 | 1 | -0.52 | 20 | -10.40 | |  Dudink, Bas | | | 1925 | NED | 0.50 | 1 | -0.12 | 20 | -2.40 | |
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 Chess Tournament 2018 - Dagvierkampen | Wijk aan Zee | NED | 2019-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1954 | 2016 | 2.50 | 3 | 0.74 | 20 | 14.80 | |
| | Van Cappellen, Michel | | | 1894 | NED | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Kruijf, Caspar | | | 1969 | NED | 0.50 | 1 | -0.07 | 20 | -1.40 | | | Dekker, Teus | | | 2000 | NED | 1.00 | 1 | 0.48 | 20 | 9.60 | |
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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