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Individual Calculations February 2019 |
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| Meijer, Robbert Total change: 6.80 | |   |
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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 |
| 1982 | 1882 | 1.00 | 3 | -0.09 | 20 | -1.80 | |
|  Ephraim, Olaf | | | 2016 | NED | 0.00 | 1 | -0.32 | 20 | -6.40 | |  Dudink, Bas | | | 1925 | NED | 0.50 | 1 | 0.06 | 20 | 1.20 | | | Hoekstra, Peter | | | 2005 | NED | 0.50 | 1 | 0.17 | 20 | 3.40 | |
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 |
| 1986 | 1882 | 1.50 | 3 | 0.43 | 20 | 8.60 | |
| | Houweling, Bert | | | 1975 | NED | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Vlugt, Frans | | | 1959 | NED | 1.00 | 1 | 0.61 | 20 | 12.20 | | | Damen, Leo | | | 2025 | NED | 0.50 | 1 | 0.19 | 20 | 3.80 | |
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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