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Individual Calculations December 2022 |
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| De Kruif, Kees Total change: 21.60 | |   |
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| 46th Guernsey International Chess Festival - Open | St Peter Port | GCI | 2022-10-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2065 | 1846 | 2.50 | 5 | 1.36 | 20 | 27.20 | |
|  Wager, John D | | | 2034 | ENG | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Collier, David O | | | 2004 | ENG | 1.00 | 1 | 0.71 | 20 | 14.20 | |  Zeidler, Sven P. | f | | 2148 | WLS | 0.50 | 1 | 0.35 | 20 | 7.00 | | | Schroeder, Gerhard | | | 2017 | GER | 1.00 | 1 | 0.73 | 20 | 14.60 | | | Johnsen, Gunnar | | | 2121 | NOR | 0.00 | 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) | | | | II Torneio 'Lagos Algarve' | Lagos | POR | 2022-10-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1888 | 1846 | 1.50 | 4 | -0.28 | 20 | -5.60 | |
| | Van Ginkel, Henk | | | 1850 | NED | 0.50 | 1 | 0.01 | 20 | 0.20 | | | Khuong, Thi Hong Nhung | | wm | 1991 | VIE | 0.50 | 1 | 0.19 | 20 | 3.80 | | | Prata, Jose | | | 1871 | POR | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Pena, Helio Adelino Silva | | | 1841 | POR | 0.00 | 1 | -0.51 | 20 | -10.20 | |
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) | | |
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