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Individual Calculations February 2023 |
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| Verheij, Dana Total change: 58.00 | |   |
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| Chessfestival Groningen 2022 Compact | Groningen | NED | 2022-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1829 | 1784 | 2.00 | 5 | -0.19 | 40 | -7.60 | |
|  Hoogeveen, Rienk | | | 1916 | NED | 0.50 | 1 | 0.18 | 40 | 7.20 | |  Rookus, Sjoerd | | | 1871 | NED | 0.00 | 1 | -0.38 | 40 | -15.20 | | | Vermeulen, Frans | | | 1880 | NED | 0.00 | 1 | -0.37 | 40 | -14.80 | | | Reintke, Erwin | | | 1695 | NED | 1.00 | 1 | 0.38 | 40 | 15.20 | | | Blok, Ronald | | | 1785 | NED | 0.50 | 1 | 0.00 | 40 | 0.00 | |
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) | | | | Tata Steel weekendvierkampen 2023 | Wijk aan Zee | NED | 2023-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1991 | 1826 | 2.50 | 3 | 1.64 | 40 | 65.60 | |
| | Van Pelt, Erwin | | | 1947 | NED | 0.50 | 1 | 0.16 | 40 | 6.40 | | | Van Meurs, Rob | | | 2061 | NED | 1.00 | 1 | 0.79 | 40 | 31.60 | | | Van Diepen, Richard | | | 1964 | NED | 1.00 | 1 | 0.69 | 40 | 27.60 | |
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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