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Individual Calculations January 2023 |
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| Boom, Harrie Total change: -11.20 | |   |
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| Chessfestival Groningen 2022 Vierkampen | Groningen | NED | 2022-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1570 | 1585 | 1.00 | 3 | -0.56 | 20 | -11.20 | |
|  Pruijssers, Henk | | | 1592 | NED | 0.00 | 1 | -0.49 | 20 | -9.80 | | | Hoecker, Horst | | | 1549 | GER | 0.00 | 1 | -0.55 | 20 | -11.00 | |  Mizzi, Steve | | | 1568 | MLT | 1.00 | 1 | 0.48 | 20 | 9.60 | |
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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