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Individual Calculations February 2019 |
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| De Vries, Leon Total change: 14.80 | |   |
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| Chess Festival Groningen 2018 - Open B and C | Groningen | NED | 2018-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1906 | 1692 | 2.50 | 7 | 0.88 | 40 | 35.20 | |
|  Blom, Yeb | | | 1989 | NED | 1.00 | 1 | 0.85 | 40 | 34.00 | |  Van Hamond, Fons | | | 2001 | NED | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Husers, Yannic | | | 1864 | NED | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Kastelijn, Toine | | | 1942 | NED | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Vermeulen, Frans | | | 1868 | NED | 0.50 | 1 | 0.23 | 40 | 9.20 | | | Van Der Hagen, Loek | | | 1830 | NED | 0.00 | 1 | -0.31 | 40 | -12.40 | | | Karsdorp, Nico | | | 1849 | NED | 0.00 | 1 | -0.29 | 40 | -11.60 | |
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) | | | | Tata Steel Chess Tournament 2018 - Weekendvierkampen | Wijk aan Zee | NED | 2019-01-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1879 | 1692 | 0.00 | 2 | -0.51 | 40 | -20.40 | |
| | Shakhverdian, William | | | 1883 | NED | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Meuwissen, Marc | | | 1875 | NED | 0.00 | 1 | -0.26 | 40 | -10.40 | |
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) | | |
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