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Individual Calculations January 2024 |
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| Hummel, Joop Total change: -32.40 | |   |
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| Chessfestival Groningen 2023 Vierkampen | Groningen | NED | 2023-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1988 | 2015 | 0.00 | 3 | -1.62 | 20 | -32.40 | |
|  Scharft, Johan | | | 1982 | NED | 0.00 | 1 | -0.55 | 20 | -11.00 | |  Kurt, Sascha | | | 1966 | NED | 0.00 | 1 | -0.57 | 20 | -11.40 | | | Boghossian, Wahe | | | 2017 | NED | 0.00 | 1 | -0.50 | 20 | -10.00 | |
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) | | |
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