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Individual Calculations February 2020 |
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| Bosma, Erik Total change: 17.80 | |   |
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| Tata Steel Weekendvierkampen 2020 | Wijk aan Zee | NED | 2020-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1961 | 1987 | 2.50 | 3 | 0.89 | 20 | 17.80 | |
|  Gabriel, Uwe | | | 1996 | GER | 1.00 | 1 | 0.51 | 20 | 10.20 | |  Van Oosten, Jaap | | | 1949 | NED | 0.50 | 1 | -0.05 | 20 | -1.00 | | | De Jong, Ben | | | 1938 | NED | 1.00 | 1 | 0.43 | 20 | 8.60 | |
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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