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Individual Calculations February 2020 |
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| Duson, Robin Total change: -3.20 | |   |
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| Chessfestival Groningen 2019 - Compact A | Groningen | NED | 2019-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1933 | 2004 | 2.00 | 4 | -0.39 | 40 | -15.60 | |
|  Van Kesteren, Stef | | | 1874 | NED | 1.00 | 1 | 0.32 | 40 | 12.80 | |  Sipkema, Willem | | | 1813 | NED | 0.50 | 1 | -0.25 | 40 | -10.00 | | | Bielderman, Guy | | | 2133 | NED | 0.00 | 1 | -0.33 | 40 | -13.20 | | | Van T Veld, Menno | | | 1911 | NED | 0.50 | 1 | -0.13 | 40 | -5.20 | |
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 Weekendvierkampen 2020 | Wijk aan Zee | NED | 2020-01-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1958 | 2007 | 2.00 | 3 | 0.31 | 40 | 12.40 | |
| | Jap Tjoen San, Linda | | wm | 2042 | NED | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Laan, David | | | 1976 | NED | 0.50 | 1 | -0.04 | 40 | -1.60 | | | De Wilde, Steven | | | 1855 | NED | 1.00 | 1 | 0.30 | 40 | 12.00 | |
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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