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Individual Calculations January 2019 |
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| Bollaart, Jeroen Total change: 29.00 | |   |
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| Chess Festival Groningen 2018 Vierkampen | Groningen | NED | 2018-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1891 | 1903 | 3.00 | 3 | 1.45 | 20 | 29.00 | |
|  Van De Poel, Taco | | | 1890 | NED | 1.00 | 1 | 0.48 | 20 | 9.60 | | | Meijer, Daniel | | | 1936 | NED | 1.00 | 1 | 0.55 | 20 | 11.00 | |  Spears, Russell | | | 1846 | NED | 1.00 | 1 | 0.42 | 20 | 8.40 | |
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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