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Individual Calculations February 2020 |
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| Hummel, Joop Total change: -12.00 | |   |
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| Tata Steel Weekendvierkampen 2020 | Wijk aan Zee | NED | 2020-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1907 | 2001 | 2.50 | 3 | 0.62 | 20 | 12.40 | |
|  Ten Ham, John | | | 1895 | NED | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Vreeburg, Jan | | | 1889 | NED | 0.50 | 1 | -0.15 | 20 | -3.00 | |  Van Doorn, Hans | | | 1936 | NED | 1.00 | 1 | 0.41 | 20 | 8.20 | |
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) | | | | Tata Steel Dagvierkampen 2020 | Wijk aan Zee | NED | 2020-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1945 | 2001 | 0.50 | 3 | -1.22 | 20 | -24.40 | |
| | Freier, Werner, Dr. | | | 1882 | GER | 0.00 | 1 | -0.66 | 20 | -13.20 | | | Rakhorst, Wim | | | 1940 | NED | 0.50 | 1 | -0.08 | 20 | -1.60 | | | De Jong, Joop | | | 2014 | NED | 0.00 | 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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