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Individual Calculations February 2023 |
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| Abma, Klaas Total change: -24.60 | |   |
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| Chessfestival Groningen 2022 Open B | Groningen | NED | 2022-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1813 | 1794 | 3.00 | 9 | -1.23 | 20 | -24.60 | |
|  Boeren, Jurriaan | | | 1923 | NED | 0.50 | 1 | 0.17 | 20 | 3.40 | |  Kryvenko, Daryna | | | 1522 | UKR | 0.50 | 1 | -0.33 | 20 | -6.60 | | | Gortemaker, Lucas | | | 1975 | NED | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Bloem, Mark | | | 1902 | NED | 0.50 | 1 | 0.15 | 20 | 3.00 | | | Reinders, Joan | | | 1813 | NED | 0.00 | 1 | -0.47 | 20 | -9.40 | | | Wierenga, Jael | | | 1762 | NED | 0.00 | 1 | -0.54 | 20 | -10.80 | | | Schwenke, Stefan | | | 1817 | GER | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Konnen, Timo | | | 1865 | NED | 0.50 | 1 | 0.10 | 20 | 2.00 | | | Sprik, Sander | | | 1740 | NED | 0.50 | 1 | -0.08 | 20 | -1.60 | |
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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